
Jennifer Whitlow, the top corporate spokeswoman at Lockheed Martin [LMT] for the past six years, is resigning to become Chief Communications Officer for UnitedHealth Group [UNH]. Andrea Greenan, the vice president for internal communication, will replace her on an interim basis while Lockheed Martin searches for a full-time replacement. In her new job, Whitlow will be based in Minneapolis. Her last day at Lockheed Martin will be March 29. Whitlow worked at Pratt & Whitney and United Technologies [UTX] before…