“When you get in the end zone, act like you’ve been there before” is an axiom that, in about two minutes on Google, I found attributed to Bear Bryant, Vince Lombardi, Darrell Royal, and Paul Brown. They all probably said it, and all coaches probably wish they could say it now to the towel-snapping louts in the locker room. Cool is simply stylish self-confidence. It’s a way adults tell the world, “I’ve got this under control.”