November 15, 1999

Mr. Fred Hassan
Pharmacia & Upjohn
100 Route 206 North
Peapack, NJ  07977

Dear Fred:

As Chairman of the Compensation Committee and on behalf of the Company's Board
of Directors (the "Board"), I am pleased to confirm the terms for your continued
employment as President and Chief Executive Officer of Pharmacia & Upjohn, Inc.
("the Company") as follows:

1. This Agreement will be in effect from the date you sign this Agreement until
November 30, 2004, and thereafter until terminated upon six months' prior
written notice by either party.

2. During the term of this Agreement, you will serve as President and Chief
Executive Officer of the Company. You will also serve as a member of the Board
of Directors and on the Board's Executive Committee. As President and Chief
Executive Officer, you will report directly to the Board and will be responsible
for the general management of the affairs of the Company in accordance with
customary practices for chief executive officers of comparable companies. You
will devote substantially all of your business time to your duties and
responsibilities with the Company. However, you will not be precluded from (i)
serving on the board of directors of other companies (subject to the reasonable
approval of the Board) and boards of trade associations or charitable
organizations; (ii) engaging in charitable activities and community affairs; and
(iii) managing your personal investments and affairs provided that such
activities do not materially interfere with your duties and responsibilities
hereunder.

3. Your annual base salary will be $1,200,000, subject to annual review for
increases and approval by the Compensation Committee of the Board based on your
position, job performance
<PAGE>   2
Mr. Fred Hassan
November 15, 1999
Page 2

and Company policy, as well as consideration of comparable compensation paid by
other major global pharmaceutical companies.

4. You will be entitled to participate in the Company's Annual Incentive Plan,
the Company's equity compensation plan(s) and any other compensation plans
offered to senior executive officers of the Company at a level determined by the
Compensation Committee of the Board to be appropriate based on your position,
job performance and Company policy, as well as consideration of comparable
compensation paid by other major global pharmaceutical companies. Your annual
stock option grant under the Company's Long-Term Incentive Plan (the "Plan")
will be not less than 250,000 shares of the Company's Common Stock, provided,
however, that this amount shall not imply a target for any such stock option
grant.

For the year 2000: (1) your target incentive award under the Company's Annual
Incentive Plan will be 100% of your annual base salary, and will be payable in
accordance with the terms of that plan; (2) your annual stock option grant under
the Plan will be 350,000 shares of the Company's Common Stock and will be made
at the same time as stock options are granted to other executive officers and
will be in accordance with the terms of the Plan; and (3) you will receive a
special stock option grant under the Plan on January 3, 2000, for 150,000 shares
of the Company's Common Stock at an exercise price equal to the Fair Market
Value (as defined in the Plan) of the Company's Common Stock on the date of
grant, which will vest in accordance with the schedule set forth below if the
average closing price of the Company's Common Stock on the New York Stock
Exchange for any 90-day period during your employment reaches the indicated
price:

<TABLE>
<CAPTION>

                     LEVEL                CUMULATIVE NUMBER OF SHARES VESTED    AVERAGE 90-DAY PRICE
                     -----                ----------------------------------    --------------------
<S>                                       <C>                                  <C>
                    Level 1                            30,000                  Grant date price plus 15%
                    Level 2                            60,000                  Level 1 price plus 15%
                    Level 3                            90,000                  Level 2 price plus 15%
                    Level 4                            120,000                 Level 3 price plus 15%
                    Level 5                            150,000                 Level 4 price plus 15%
</TABLE>
<PAGE>   3
Mr. Fred Hassan
November 15, 1999
Page 3

Stock options will vest immediately upon your death or disability, a Change in
Control of the Company (as defined in the Plan), your involuntary termination of
employment other than for Cause (as defined below), or your termination of
employment for Good Reason (as defined below), provided you do not enter into
Competition (as defined below) with the Company within two years after your
employment is terminated.

5. You will receive, on the day following your acceptance of this Agreement, a
grant under the Plan of 200,000 restricted shares of the Company's Common Stock,
provided, however, that notwithstanding any provisions in the Plan, in
consideration of the grant of such restricted shares, you and the Company agree
to irrevocably waive the provision of the Plan providing that such restricted
stock shall be earned in the event of a Change in Control of the Company. You
shall receive all dividends paid on such restricted stock. Such restricted stock
will vest either (i) on the first day of the month following your retirement
provided such date is not prior to December 1, 2004, (ii) on the date your
employment with the Company is terminated on account of your death or disability
or is involuntarily terminated by the Company other than for Cause or you
terminate your employment for Good Reason (within six months after the event
constituting Good Reason), or (iii) on such other date before December 1, 2004,
as the Board may elect in its sole discretion. If prior to December 1, 2004,
your employment is involuntarily terminated by the Company for Cause or you
voluntarily terminate your employment other than for Good Reason (within six
months after the event constituting Good Reason), you will forfeit such
restricted stock unless otherwise elected by the Board in its sole discretion.
However, you will not be required to repay any dividends previously received on
such restricted stock.

6. You will receive employee benefits and perquisites at least as favorable as
those provided to other similarly situated senior executive officers of the
Company, including, without limitation, if offered to such other senior
executives, pension, profit-sharing, savings, deferred compensation and other
retirement plans or programs, medical, dental, hospitalization, short-term and
long-term disability, life insurance, accidental death, travel accident,
vacation and any other benefit programs or plans that may be sponsored by the
Company, including any plans that supplement the above-
<PAGE>   4
Mr. Fred Hassan
November 15, 1999
Page 4

listed plans, whether funded or unfunded. You shall be entitled to
post-retirement welfare benefits as are currently made available by the Company
to its senior executive officers, provided that for this purpose your period of
employment shall be deemed to be the period necessary to obtain the maximum
level of such benefits. In the event that adverse tax consequences may result if
medical benefits are provided to you directly, the Company will pay you the
amount necessary to purchase the coverage, adjusted for taxes, on an after-tax
basis.

7. In the event that prior to November 30, 2004, or such later date prior to the
expiration of the term of this Agreement, your employment is involuntarily
terminated by the Company other than for Cause or you terminate your employment
for Good Reason (within six months after your learning of the event constituting
Good Reason), provided (i) you do not enter into Competition (as defined below)
with the Company for a period of two years following the termination of your
employment, and (ii) you execute, and do not revoke, a written release
substantially in the form attached hereto, although the Company reserves the
right to make any changes required to make the release fully effective under the
then applicable law, then, as liquidated damages and in lieu of any other
damages or compensation under this Agreement or otherwise:

                  (i) you shall receive a lump sum severance payment, payable
within 60 days after termination of your employment, equal to three years' base
salary and annual target incentive compensation (calculated using the amount of
your highest annual base salary and highest annual target incentive compensation
received by you within three years prior to your date of termination);

                  (ii) you shall have your period of employment service used to
calculate retirement and other employee benefits extended as if you had worked
until November 30, 2004 (or such later date when the term of this Agreement
expires), and the compensation used to calculate your retirement benefits will
be determined as if you had continued to receive until November 30, 2004 (or
such later date when the term of this Agreement expires) salary and incentive
compensation equal to the highest annual base salary and highest annual target
incentive compensation you received within three years prior to your date of
termination (such amounts to be payable from a non-qualified, supplemental
retirement plan);
<PAGE>   5
Mr. Fred Hassan
November 15, 1999
Page 5

                  (iii) you will be entitled to exercise, in accordance with
their terms, any remaining stock options that had been granted prior to your
termination (all of which will become vested under such circumstances) for the
maximum period permitted under the terms of the Plan;

                  (iv) the restrictions shall lapse on any remaining restricted
shares granted to you pursuant to paragraph 5 of this Agreement that are not yet
vested;

                  (v) you will receive a pro-rata annual incentive compensation
award in or around March of the year following your termination equal to the
amount you would have received if you had worked for the full year multiplied by
a fraction where the numerator is the number of months (rounded to the next
highest number for a partial month) of the year elapsed prior to your
termination and the denominator is 12;

                  (vi) you and your dependents shall continue to participate
(with the same level of coverage) for three years in all medical, dental,
hospitalization, accident, disability, life insurance and any other benefit
plans of the Company on the same terms as in effect immediately prior to your
termination unless changed for senior executives generally; provided, however,
that such benefits will be offset to the extent that you or your dependents
receive benefits from another source; and, provided that in the event adverse
tax consequences may result if medical benefits are provided to you directly,
the Company will pay you the amount necessary to purchase the coverage, adjusted
for taxes, on an after-tax basis.

                  (vii) you shall be entitled to outplacement services, at the
expense of the Company, from a provider selected by you, subject to a maximum
expense of $100,000; and

                  (viii) you shall receive any other amounts earned, accrued or
owing to you under the plans and programs of the Company.

8. (i) In the event of a Change in Control (as currently defined in the Plan
without regard to any future amendment) of the Company occurring prior to June
1, 2000, your employment with the Company is involuntarily terminated other than
for Cause or you terminate your employment for Good Reason, either within one
year following such Change in Control or within one year preceding a Change in
Control if such termination is in contemplation of the Change in Control, the
Company will assure you that the 500,000 stock options granted under
<PAGE>   6
Mr. Fred Hassan
November 15, 1999
Page 6

paragraph 4 of your initial employment agreement dated May 7, 1997 (even if
previously exercised or if not yet exercisable)("Initial Stock Options") will
have a before-tax value of at least $15 million on the date of such Change in
Control. If they do not have that value, then the Company will pay you, within
sixty days after the date of your involuntary termination without Cause or the
date you terminate your employment for Good Reason, a lump sum cash payment in
an amount equal to the difference between $15 million and the spread between
exercise price and market price on the date of such Change in Control of the
Initial Stock Options.

         (ii) In the event that any amount or benefits made or provided to you
above and under all other plans and programs of the Company (the "Covered
Payments") is determined to constitute a Parachute Payment, as such term is
defined in Section 280G(b)(2) of the Internal Revenue Code, the Company shall
pay to you, prior to the time any Internal Revenue Code Section 4999 excise tax
("Excise Tax") is payable with respect to any such Covered Payment, an
additional amount which is equal to the Excise Tax on the Covered Payment (the
"Initial Gross-Up"), plus the amount of income tax and Excise Tax payable by you
with respect to the Initial Gross-Up (the "Second Gross-Up"), the amount of
income tax and Excise Tax payable by you with respect to the Second Gross-Up
(the "Third Gross-Up"), the amount of income tax and Excise Tax payable by you
with respect to the Third Gross-Up (the "Fourth Gross-Up"), and the amount of
income tax and Excise Tax payable by you with respect to the Fourth Gross-Up.
The determination of whether the Covered Payment constitutes a Parachute Payment
and, if so, the amount to be paid to you and the time of payment pursuant to
this Section 8 shall be made by an independent auditor (the "Auditor") jointly
selected by the Company and you and paid by the Company. The Auditor shall be a
nationally recognized United States public accounting firm which has not, during
the two years preceding the date of its selection, acted in any way on behalf of
the Company or any of its subsidiaries. If you and the Company cannot agree on
the firm to serve as the Auditor, then you and the Company shall each select one
accounting firm and those two firms shall jointly select the accounting firm to
serve as the Auditor.

9. In the event that, prior to November 30, 2004 or such later date when the
term of this Agreement expires, your employment is (a) involuntarily terminated
by the Company for Cause, or
<PAGE>   7
Mr. Fred Hassan
November 15, 1999
Page 7

(b) you voluntarily terminate your employment other than (x) for Good Reason
(within six months after the event constituting Good Reason) or (y) due to
permanent disability:

                  (i) you will forfeit your right to receive any salary,
incentive compensation, severance pay, restricted stock, or other compensation
that has not been fully earned at the time your employment terminates, provided,
however, you will be entitled to receive any benefits or amounts accrued but not
yet paid as of the date of termination;

                  (ii) you will not be able to exercise any remaining
unexercised stock options, all of which shall be cancelled upon such termination
of your employment; and

                  (iii) you shall receive any other amounts earned, accrued or
owing to you under the plans and programs of the Company.

10. (a) If your employment with the Company is terminated (i) at the expiration
of this Agreement, or (ii) on account of disability, the Company will pay you
the greater of (I) the amount of (A) qualified and non-qualified retirement
income you would have been entitled to receive under the American Home Products
Corporation ("AHP") retirement benefit formula in effect at the time you left
AHP if you had remained employed by AHP until the later of (x) your attainment
of age 55, or (y) the date your employment with the Company terminates, and if
AHP had paid you the same compensation as you received from the Company, less
(B) the amount of any qualified or non-qualified retirement income you are
actually entitled to receive from AHP; or (II) the amount of retirement income
you would be entitled to receive under the Company's Global Officer Pension Plan
(or any other retirement plan hereafter provided by the Company for its senior
executive officers) using your actual years of service and compensation with the
Company and a straight line accrual rate from the date your employment with the
Company commenced until age 60 to provide a retirement benefit at age 60 equal
to 60% of the highest annual base salary and highest annual target incentive
compensation you received within the three prior years ("Highest Annual Total
Compensation") and an annual 1% accrual rate from age 60 to age 65 to provide a
retirement benefit at age 65 equal to 65% of your Highest Annual Total
Compensation, which will be your maximum retirement benefit under the plan.
<PAGE>   8
Mr. Fred Hassan
November 15, 1999
Page 8

         (b) If prior to November 30, 2004, or such later date prior to the
expiration of the term of this Agreement, your employment is involuntarily
terminated by the Company other than for Cause or you terminate your employment
for Good Reason (within six months after your learning of the event constituting
Good Reason), the Company will pay you the greater of (i) the amount of (A)
qualified and non-qualified retirement income you would have been entitled to
receive under the AHP retirement benefit formula in effect at the time you left
AHP if you had remained employed by AHP until the later of (x) your attainment
of age 55, or (y) the date your employment with the Company terminates and if
AHP had paid you the same compensation as you received from the Company, less
(B) the amount of any qualified or non-qualified retirement income you are
actually entitled to receive from AHP; or (ii) the amount of retirement income
you would be entitled to receive under the Company's Global Officer Pension Plan
(or any other retirement plan hereafter provided by the Company for its senior
executive officers) computed using as your period of service the number of years
that you would have been employed by the Company had you remained employed by
the Company until November 30, 2004 (or such later date when the term of this
Agreement expires) and a straight line accrual rate from the date your
employment with the Company commenced until age 60 to provide a retirement
benefit at age 60 equal to 60% of your Highest Annual Total Compensation and an
annual 1% accrual rate from age 60 to age 65 to provide a retirement benefit at
age 65 equal to 65% of your Highest Annual Total Compensation, which will be
your maximum retirement benefit under the plan.

         (c) If you voluntarily terminate your employment with the Company other
than for Good Reason (within six months of the event constituting Good Reason),
or if the Company terminates your employment for Cause, the Company will pay you
the greater of (i) the amount of (A) qualified and non-qualified retirement
income you would have been entitled to receive under the AHP retirement benefit
formula in effect at the time you left AHP if you had remained employed by AHP
until the date your employment with the Company terminates and if your
compensation in effect at the time you left AHP had increased at a 5% compounded
rate annually, less (B) the amount of any qualified or non-qualified retirement
income you are actually entitled to receive from AHP; or (ii) the amount of
retirement income you are entitled to receive under the Company's Global Officer
Pension Plan (or any other retirement plan hereafter provided by the
<PAGE>   9
Mr. Fred Hassan
November 15, 1999
Page 9

Company for its senior executive officers) using your actual years of service
and Highest Annual Total Compensation.

         (d) The Company's Global Officer Pension Plan is not qualified under
the U.S. Internal Revenue Code. All references to the Global Officer Pension
Plan refer to provisions as they exist on the date of this Agreement.
Modification to the Global Officer Pension Plan may increase your entitlements,
but shall not be used to reduce or eliminate any entitlements. Your entitlement
to pension benefits remain contractual rights under this Agreement and exist
independently from the Global Officer Pension Plan. The benefits payable under
the Company's Global Officer Pension Plan will be offset for any retirement
income from social security or other governmental programs and for any
retirement income from any prior employers, that you may be entitled to receive.

         (e) If you die while employed by the Company or thereafter under
circumstances in which (i) a spousal survivor's benefit would have been payable
under the AHP retirement plans had you continued employment with AHP, and/or
(ii) a spousal survivor's benefit becomes payable under the Company's Global
Officer Pension Plan or any other retirement plans of the Company under which
you are covered, then the benefit payable by the Company to your surviving
spouse shall be the greater of (i) the amount which would have been payable as a
spousal survivor's benefit under the AHP retirement plans had you continued
employment with your AHP, or (ii) the amount payable as a spousal survivor's
benefit under the Global Officer Pension Plan or any other retirement plans of
the Company, with each such amount being calculated in accordance with the
assumptions described in and offsets corresponding to those provided for in this
paragraph 10, whichever is applicable to the circumstances of the termination of
your employment with the Company.

         (f) For the purpose of the foregoing calculations, alternative forms of
benefits will be made actuarially equivalent using the actuarial assumptions
then applied to all senior executive officers under the Company's Global Officer
Pension Plan (or any successor plan).

         (g) Upon termination of your employment, the Company shall fund that
portion, if any, of the pension obligation that is then unfunded by establishing
a trust. Such trust shall be in a form that provides you with the most favorable
tax position that reasonably can be determined at the time it is established and
funded. The formation of such trust or funding thereof shall not cause the
<PAGE>   10
Mr. Fred Hassan
November 15, 1999
Page 10

pension obligation, it if is deemed to be a plan under ERISA, to lose its status
as a "top hat plan" thereunder. The trust shall provide for distribution of
amounts to you in order to pay taxes, if any, that become due prior to payment
of pension amounts pursuant to the trust. The amount of such fund shall equal
the then present value of the pension due as determined by a nationally
recognized firm qualified to provide actuarial services which has not rendered
services to the Company during the two years preceding such determination. The
establishment and funding of such trust shall not affect the obligation of the
Company to provide the pension hereunder.

11. In the event you should terminate employment due to disability prior to
November 30, 2004, you will be entitled to benefits in accordance with the
Company's disability program, provided, however, that notwithstanding any other
levels that may be provided under such program, you shall receive salary
continuation at the rate of at least 100% of base salary for three months, 75%
of base salary for the next three months, and 60% of base salary until age 65
and you shall receive any other amounts earned, accrued or owing to you under
the plans and programs of the Company.

12. In the event you should die while still employed by the Company prior to
November 30, 2004, your spouse or other beneficiary shall receive a lump sum
payment equal to three years' base salary offset by any death benefits payable
under the Company's life insurance plans under which you are covered and any
other amounts earned, accrued or owing to you under the plans and programs of
the Company.

13. You are authorized to incur reasonable expenses in carrying out your duties
and responsibilities with the Company, and the Company shall promptly reimburse
you for all business expenses in accordance with Company policy. The Company
shall pay your reasonable expenses for legal counsel and financial advice in
connection with the negotiation and documentation of this Agreement. In an
effort to make best use of your time and to insure your safety and security for
the benefit of the Company, you will be provided with use of the Company's
aircraft and a chauffeured automobile. You will receive annual assistance from
an independent accounting firm selected by
<PAGE>   11
Mr. Fred Hassan
November 15, 1999
Page 11

the Company but acceptable to you, at Company expense, for financial planning,
including preparation of your income tax returns.

14. To the fullest extent permitted by applicable law, all intellectual property
(including patents, trademarks, copyrights and trade secrets) which are made,
developed or acquired by you in the course of your employment with the Company
will be and remain the absolute property of the Company.

15. During the period of your employment and thereafter, you will maintain the
confidentiality of all confidential or proprietary information relating to the
business of the Company or any of its subsidiaries or affiliates provided,
however, that you may disclose such information as (i) may be required or
appropriate in carrying out your duties at the Company, or (ii) may be required
for you to disclose by applicable law, governmental regulations or judicial or
regulatory process.

16. Without the written consent of the Board, you agree that during the period
of your employment with the Company and for a period of two years following the
termination of your employment, you will not enter into Competition with the
Company. "Competition" as used in this Agreement means that you commence
employment with, or provide substantial consulting services to, any
pharmaceutical company (except companies where sales from pharmaceutical
products constitute less than 20% of total sales). Anything herein to the
contrary notwithstanding, your service solely as a member of the board of
directors of a company whose annual sales, for its last fiscal year prior to
your becoming a member of its board of directors, are less than $100 million
shall not be deemed to be Competition for purposes of this Agreement. For
purposes of the preceding sentence, if a company is a subsidiary of another
company, the sales of both companies shall be taken into account.

17. Without the written consent of the Board, you agree that during the period
of two years following the termination of your employment for any reason(s)
other than by the Company
<PAGE>   12
Mr. Fred Hassan
November 15, 1999
Page 12

without Cause or by you for Good Reason, you will not knowingly solicit or
encourage the solicitation of any person who was an elected officer of the
Company or a member of the Company's Operations Group (or its equivalent
successor) at any time during your employment with the Company by any employer
other than the Company for any position as an employee, independent contractor,
consultant or otherwise. This covenant will not preclude the solicitation of any
individual after 18 months have elapsed subsequent to the date on which such
individual's employment or engagement by the Company has terminated and will not
preclude your providing a standard reference for a Company employee if requested
to do so by a third party.

18. To the fullest extent permitted by applicable law, the Company will, during
and after termination of your employment, indemnify you (including providing
advancement of reasonable expenses) for any judgments, fines, amounts paid in
settlement and reasonable expenses, including attorneys' fees, incurred by you
in connection with the defense of any lawsuit or other claim to which you are
made, or threatened to be made, a party by reason of being or having been an
officer, director or employee of the Company or any of its subsidiaries or
affiliates. In addition, you will be covered under any directors and officers'
liability insurance policy for your acts (or non-acts) as an officer or director
of the Company or any of its subsidiaries or affiliates to the extent the
Company provides such coverage for its senior executive officers.

19. Any disputes arising under or in connection with this Agreement shall,
unless other arrangements are agreed upon in writing by you and the Company, be
resolved by binding arbitration to be held in New York, New York, in accordance
with the National Rules for the Resolution of Employment Disputes of the
American Arbitration Association. Judgment upon the award rendered by the
arbitrator(s) may be entered in any court having jurisdiction. Each party shall
bear his or its own costs of the arbitration or litigation, including (but not
by way of limitation) his or its attorneys' fees.

20. In the event of termination of your employment with the Company, you will
immediately, unless otherwise requested by the Board, resign from all
directorships, trusteeships, offices,
<PAGE>   13
Mr. Fred Hassan
November 15, 1999
Page 13

employment and any other positions held at that time with the Company or any of
its subsidiaries or affiliates.

21. For purposes of this Agreement, "Cause" means (i) a material breach by you
of your duties and responsibilities (other than as a result of incapacity due to
physical or mental illness) which is demonstrably willful and deliberate on your
part, which is committed in bad faith or without reasonable belief that such
breach is in the best interests of the Company, and which is not remedied in a
reasonable period of time after receipt of written notice from the Company
specifying such breach; or (ii) your conviction of a felony which is materially
and demonstrably injurious to the Company as determined in the sole discretion
of the Board of Directors of the Company. Furthermore, no termination by the
Company for Cause shall become effective without your being given a written
explanation of the basis for the termination and a hearing before the Board.

22. For purposes of this Agreement, "Good Reason" means that, without your
consent, (i) your rate of annual base salary or the target amount of your annual
cash incentive bonus are reduced in a manner that is not applied proportionately
to all other senior executive officers of the Company, (ii) the Company (or such
successor to the Company following a Change in Control) fails to retain you as
President and Chief Executive Officer, (iii) there is a change in reporting so
that you no longer report to the Board, (iv) the Company fails to nominate you
for election to the Board, (v) the Board fails to elect you Chairman of the
Board by the date of the Annual Meeting of Shareholders in 2001, and at all
times subsequent thereto, provided, however, that this provision shall not apply
to a successor to the Company following a Change in Control unless the Chairman
of the Board of the successor company serves in an executive capacity, (vi)
there is a material diminution in your duties, or the assignment to you of
duties which are materially inconsistent with your duties or materially impair
your ability to function as the President and Chief Executive Officer of the
Company, (vii) the relocation of the Company's principal office, or your own
office location as assigned to you by the Company, to a location more than 75
miles from Peapack, New Jersey that has not been approved by you in advance; or
(viii) the failure of the Company to obtain the assumption in writing of its
obligation to perform this Agreement by any successor to all or
<PAGE>   14
Mr. Fred Hassan
November 15, 1999
Page 14

substantially all of the assets of the Company within 15 days after a merger,
consolidation, sale or similar transaction.

23. The obligation of the Company to make any payments provided for hereunder
and otherwise to perform their obligations hereunder shall not be affected by
any set-off, counterclaim, recoupment, defense or other claim, right or action
which the Company may have against you or others. In no event shall you be
obligated to seek other employment or take other action by way of mitigation of
the amounts payable to you under any of the provisions of this Agreement, and
such amounts shall not be reduced (except as otherwise specifically provided
herein) whether or not you obtain other employment.

24. In the event of any change in the outstanding shares of the Company's Common
Stock (including any increase or decrease in such shares) by reason of any stock
dividend or split, recapitalization, merger, consolidation, spinoff, combination
or exchange of shares or other similar corporate change, or any distributions to
common stockholders other than regular cash dividends, the Compensation
Committee of the Board shall make such substitution or adjustment, if any, as it
reasonably deems to be equitable to the number or kind of shares of Common Stock
provided for in this Agreement.

25. This Agreement shall be governed by and construed in accordance with the
laws of the State of New Jersey, U.S.A.

26.      (a) No rights or obligations of the Company under this Agreement may be
assigned or transferred by the Company except that such rights or obligations
may be assigned or transferred pursuant to a merger or consolidation in which
the Company is not the continuing entity, or pursuant to the sale or transfer of
all or substantially all of the assets of the Company, provided that the
assignee or transferee is the successor to all or substantially all of the
assets of the Company.

         (b) This Agreement shall not be terminated by any merger,
consolidation, or transfer of assets referred to above. In the event of any such
merger, consolidation or transfer of assets, the
<PAGE>   15
Mr. Fred Hassan
November 15, 1999
Page 15

provisions of this Agreement shall be binding upon the surviving or resulting
corporation or the person or entity to which such assets are transferred.

         (c) The Company agrees that concurrently with any merger, consolidation
or transfer of assets referred to above, it will cause any successor or
transferee unconditionally to assume, either contractually or as a matter of
law, the liabilities, obligations, and duties of the Company hereunder.

         (d) This Agreement shall inure to the benefit of, and be enforceable by
or against, you or your personal or legal representatives, executors,
administrators, successors, heirs, distributees, designees and legatees. None of
your rights or obligations under this Agreement may be assigned or transferred
by you other than your rights to compensation and benefits, which may be
transferred only by will or operation of law. If you should die while any
amounts or benefits have been accrued by you but not yet paid as of the date of
your death and which would be payable to you hereunder had you continued to
live, all such amounts and benefits unless otherwise provided herein shall be
paid or provided in accordance with the terms of this Agreement to such person
or persons appointed in writing by you to receive such amounts or, if no such
person is so appointed, to your estate.

27. No provisions of this Agreement may be waived, modified or discharged unless
such waiver, modification or discharge is specifically agreed to in writing
signed by both you and an authorized officer of the Company. No waiver by any
party hereto at any time of any breach by any other party hereto of, or
compliance with, any condition or provision of this Agreement to be performed by
such other party shall be deemed a waiver of similar or dissimilar provisions or
conditions at the same or at any prior or subsequent time. No agreements or
representations, oral or otherwise, express or implied, with respect to the
subject matter hereof have been made by any party which are not set forth
expressly in this Agreement.

28. This Agreement may be executed by the parties in two or more counterparts,
each of which shall be deemed to be an original, but all such counterparts shall
constitute one and the same instrument, and all signatures need not appear on
any one counterpart. A faxed signature of a party
<PAGE>   16
Mr. Fred Hassan
November 15, 1999
Page 16

which is a reproduction of a genuine signature of that party shall be conclusive
evidence of execution of this Agreement by that party.

29. This Agreement sets forth the entire agreement of the parties hereto in
respect of the subject matter contained herein and supersedes all prior
agreements, promises, covenants, arrangements, communications, representations
or warranties, whether oral or written, by any officer, employee or
representative of any party hereto in respect of the subject matter contained
herein.

30. You acknowledge that you have been advised to review the terms of this
Agreement with an attorney of your choosing, and that you have had full
opportunity, prior to execution of this Agreement, to review thoroughly this
Agreement with your counsel, the reasonable expenses of which will be reimbursed
by the Company.

Very truly yours,


- ------------------------------
FRANK C. CARLUCCI



I accept the terms set forth in this letter and will serve in the capacity, for
the duration and under the conditions stated herein:

- ------------------------------
Fred Hassan
Date:    November   , 1999