Coach bro has also shown he can take some no name QB nobody else wanted and develop them. If only he could consistently field a defense, he might actually have a regular bowl team in Lubbock. Coaching matters, but also recruiting the right kids does too.
Herman is a hard ass and a dick. Charlie's kids preferred a players coach obviously. They are bailing like rats off the titanic. Charlie was a stickler for rules, but he wasn't an asshole. Herman is an asshole. Like Saban but without the skins on the wall. You can put up with a hard ass if he's winning games and putting people in the NFL. Not so much at 6-6.
Bro is like a young, offensively minded Wade Phillips. The Peter Principle in all it's glory. he needs to be an OC and assistant HC, but he doesnn't have the defensive brain or the desire to devote resources to defense.