When your head coach is having it dictated to him how he's going to have plays called, he's not really a head coach.

Garrett can be a "leader of men", yet lacks the authority to manage his own staff. That's a bad joke.
I don't know what it takes for everyone to see what a meddling fool Jerry Jones is. A video of him laughing at the fans and how he suckered Arlington into building him a stadium didn't do the trick, so I'm not sure what would.
“He doesn’t like it because Jerry thinks he’s the walk-around head coach." - Jimmy Johnson