he puts inexperienced and unproven coaches in a position to fail with the success of the program at stake

Who are these experienced and proven coaches that Bronco should have hired?  Would he have had enough money to entice them to come to Provo? I don't expect you to name names, but I do think it's worthwhile to remember that BYU is working with some major institutional constraints (because of the Church) and some major financial constraints (because of the Church).

Maybe Bronco's decision to promote inexperienced and unproven coaches was a necessity.