I sure wish I knew happened there with Wade and the team. Really knew, not just speculation.
I think it was pretty simple. There were two seperate issues:
1. Jason Garrett, the offensive coordinator, answered directly to Jerry Jones. The only time he interracted with Phillips was practice scheduling and during times when a decision has to be made in a game.
Wade, who was also the defensive coordinator answered directly to Jerry Jones.
So, if the offensive coordinator and.the defensive coordinator both answered directly to the same person, what do you call that person. Yes, Jerry Jones was making coaching decisions.
2. The 3-4 defense built by Bill Parcells was a traditional style 3-4, huge NT Jason Ferguson, DE's built like DT's in Canty and Spears, althetic all purpose LB's with speed and pass defending capability. The front 3 rushed the QB in a controlled manner while the real pressure came from the mystery 4th pass rusher, capable of being any of the other 8 defenders on the field. The D-line would clog the line and the LB's made the plays.
The personnel that Parcells built his defense with were not compatible to Wade's 3-4 which called for a more traditional type of DE. Also, Wade used Ware as a designated pass rusher so there wasn't much mystery as to who was rushing the QB. In other words, Wade's 3-4 was more like a 4-3 out of position.
So they lost Canty and Spears, Ratliff played well but was too small overall for the run defense.
Additionally, Parcells built a running O-line, Davis and Columbo were never meant to drop back and pass protect 70% of the time and that caused problems.
In a nutshell they had the wrong players for the wrong personnel philosophy.