I'm not sure the players came to play for Butch, they came to play for Tennessee, that could be the problem, if the players and coaches don't agree then nothing will work. Not even Luck. The coaches also have to be here for the players, calling ridiculous plays doesn't let the players have trust in coaches, if they know something is wrong and try to look to the sidelines for approval to audible, and get denial. How do you think the players will feel when the play fails?
If the coaches have lost them it's time for a change. If QD decides to disobey the coach then he will be pulled and another QB who will obey will get to play.