A group of internal advisers to the 2010 Quadrennial Defense Review warned Pentagon leaders in the fall of 2009 that the Obama administration's major examination of national defense requirements was based on too-rosy economic assumptions, according to Defense Department sources. Members of a “red team” presented the critique to Defense Secretary Robert Gates in a September 2009 report. Gates assembled the red team, led by then-U.S. Joint Forces Command chief Marine Corps Gen. James Mattis and Andrew Marshall, the director...