Senior civilian Pentagon leaders last month tentatively decided to expand a new, more joint management approach to certain Defense Department programs, but stopped short of using the concept to manage the services' big-ticket weapon systems, sources tell InsideDefense.com . At a Dec. 18, 2007, meeting of the high-powered Deputy's Advisory Working Group (DAWG), officials tasked four teams to craft preliminary analyses by February that could lead to the creation of four new so-called capability portfolio management groups, defense sources said...