If he just focused on his successes as he says he does, he should have already learned a big lesson- his only success came from having a strong HC with all authority over the locker room.
That was a success he had from Jimmy that apparently he chooses not reflect on.
There's a second example with Parcells. People want to blast him because he didn't win here....but what he DID do was point the entire franchise in the right direction.
The 2000-2002 Cowboys were pathetic. The 2007 team earned a one seed with puppet Wade. Who made that happen? GM Jerry Jones? Yeah I don't think so.
That team was primed to make a run or two, and Jerry managed to screw that up also.
He basically wants to be the walk around HC who picks two coordinators, but hires a puppet to stand on the sidelines during games.
Never once has he not forced at least one coordinator on a HC.
Either way anyone wants to look at that, the bottom line is it hasn't worked, and the sample size is huge.
