Chattanooga, Tenn. ? Appalachian State kicked off this crazy football season with the stunning upset of Michigan. Now the Mountaineers have the perfect bookend: History as Division I-AA’s first three-peat national champions. Armanti Edwards threw for three touchdowns, and Appalachian State jumped out to a 21-0 lead and never trailed in beating Delaware, 49-21, on Friday night for a third consecutive title in the Football Championship Subdivision.