almost entirely on the input and direction of military experts in the Pentagon to inform his military actions. A DC is actually the equivalent of the Pentagon when it comes to calling the shots and determining strategies and overseeing development.
Currently 125 of 128 FBS DCs played college football - 127 of 128 either played college football or spent years honing their coaching bonafides at a lower level of the game.
The one groundbreaking exception to these established norms..... our Nick.