[youtube]http://www.youtube.com/watch?v=T35e-0OGXY4&feature=player_embedded#![/youtube] This year’s preseason was rough on service academy alums. Thought to be a lock for the Philadelphia Eagles roster, wide receiver Chad Hall, an Air Force Academy alum, was one of the last cuts. Linebacker Caleb Campbell, a standout safety for the Army Black Knights drafted in the seventh round of the 2008 NFL draft, similarly got cut after making the Detroit Lions roster last year. Campbell has found his way back to an NFL roster after the Indianapolis Colts signed the linebacker to their practice squad Tuesday. Campbell has a chance to make the active roster unless the…