I've noticed this stress issue for a couple of years now. In 2015 UF iirc, I remember talking to people watching @ how CBJ was ranting constantly and looked over his head in the pressure cooker. No way a person exhibiting that much emotional stress could be making solid strategic decisions in the course of a game.
I really want Butch to succeed, but this was the first thing that concerned me early on about him. All great ones (exc.Tom Landry maybe) go ballistic over things in big games from time to time. But they all relax and use their time to THINK and outsmart the opposition in the "chess match". The results of most of our big game "chess matches" haven't ended well.
Just an observation.