I come away from the Netflix doc liking him even less, but I do think he has mental problems. I'm pretty competitive, I know a lot of competitive people, but there is something very much wrong with him that a man who was in his early 40s had to take two ambien and wash it down with a beer to get four hours of sleep every night. He really had zero joy being in the profession, which isn't necessarily uncommon, but what was he really coaching for in the first place if it made him that miserable and unhealthy?
It doesn't matter. He won way more games than he lost and that's what people value. It's the reason so many people wanted him to come to ND and for a long time people wouldn't let go of it. Some people still haven't, though less than previously I believe. Seeing what he did at BGSU and Utah as quickly as he did it, you knew he had something. The sad thing is that as driven as he was he probably could have won a title at ND even without cutting corners and taking the low road with the wind at his back like he did at Florida and Ohio State.
At what cost? IDK, ND probably goes on probation after he leaves and he probably doesn't live to see 50.