Distinguished Service Professor at Harvard University - July 2003 to present. His research and teaching interests are centered on corporate governance. * Prior Professional Experience: Previously, Mr. Clark served in the following positions: * Dean and Royall Professor of Law, Harvard Law School - 1989 to 2003. * Professor, Harvard Law School - 1978 to 2003. Concentrated on corporate law; author of Corporate Law. * Professor, Yale Law School - 1974 to 1978. * Associate, Ropes & Gray - 1972 to 1974. Practice involved commercial and corporate law. * Company Directorship: Mr. Clark is an Independent Director. He has been a Director of the Company since January 2004. * Other Directorships: Mr. Clark serves as a director of Omnicom Group, Inc. He is also a trustee of TIAA, a large pension fund serving the higher education community.