1974-1977 - He was a general partner of Lehman Brothers.
1977 - He joined the Blackstone Group as vice-chairman, head of merger and acquisition advisory and a member of the investment committee.
1977-1981 - He served as the Assistant Secretary of the United States Treasury.
1987-1992 - He was the Vice-President of the Blackstone Group where he led that firm's merger advisory business.
1993 - He returned to Washingto, D.C. to serve as the Deputy Secretary of the US Treasury.
1994 - He resigned because of a record keeping scandal on August 29, 1994.
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