re: What is it about Nick Saban that makes him such an extraordinary Head Coach?

Short man syndrome. No amount of coaching elite talent or winning championships will ever change the fact that Saban, literally but not figuratively, looks up to someone like Paul Finebaum even when wearing his shoe lifts. Being vertically challenged is an every day thing for Saban so he is relentless in proving himself better than taller coaches, pretty much all of them and particularly the ones who tower over Saban even though they are of average or even below average height.