FILE - In this Dec. 1, 2009 file photo, General Motors' Chairman Ed Whitacre Jr. announces that CEO Frederick 'Fritz' Henderson has resigned during a news conference in Detroit. Ed Whitacre Jr. said Friday, Dec. 4, 2009, engineering chief Mark Reuss is now head of GM's North American operations in a management shakeup announced to employees Friday.
(AP Photo/Paul Sancya, file)