Look, anger is understandable. I hate losing, and I wish more of our kids did. But after spending 2 years with Dan Mullen surely he was used to it.
It wasnt dude's first game playing DE/Edge. Things like "dont suck inside and lose outside leverage for edge contain" and "dont over penetrate outside, again losing gap control and allowing a RB to run outside the DT and inside you" are things you learn in middle school. And he fuchsing did it like legitimately 50% of the time. Maybe he is just dumb as a box of roocks, I dont know.