Edward E. Whitacre, Jr., Principal Occupation: Former Chairman of the Board, General Motors; Chairman Emeritus, AT&T. Business Experience: Mr. Whitacre joined General Motors in July 2009 as Chairman, became Chief Executive Officer in December 2009, relinquished the roles of Chief Executive Officer in September 2010 and Chairman in December 2010. At AT&T, Mr. Whitacre was elected Chairman and Chief Executive Officer upon its merger with SBC Communications in 2005, and retired in 2007. He was elected Chairman and Chief Executive Officer of SBC in 1990; and President and Chief Operating Officer in 1988. Current Public Company Directorships: None. Past Public Company Directorships: Anheuser Busch (September 1988 - November 2008); AT&T (November 2005 - June 2007); Burlington Northern Santa Fe (April 1993 - February 2010); General Motors (July 2009 - December 2010).