President, Chicago Board of Education, 1984-1987. Partner, Mayer, Brown & Platt, 1985-1989. George Muñoz and Associates, 1989-1993. Assistant Secretary and Chief Financial Officer of the U.S. Treasury Department, 1993-1997. President and Chief Executive Officer of the Overseas Private Investment Corporation, an independent federal agency facilitating U.S. investment in developing countries, 1997-2001.