The Army has picked Lt. Gen. Johnny Riggs, the commander of the 1st U.S. Army, to direct a task force set up by the chief of staff to steer the service's transformation efforts. The Objective Force Task Force will aid Chief of Staff Gen. Eric Shinseki in his efforts to overhaul the Army through the creation of a lighter, faster fighting force centered around the Future Combat System. Shinseki originally announced an FCS task force last October, but later changed...