First of all, allowing 4 teams go to the playoffs, the playoffs aren't the badge of honor it once was. He made the playoffs this year because his bad team beat the other bad teams. Then got smoked in the first round.
The first couple of years, he was operating off what Neumann had instilled. Just like Barry Switzer was operating off what Jimmy Johnson instilled and won a Super Bowl. But it got ugly once Jimmy's influence wore off. After Neumann's influence wore off, it was all his and it all went south. Like I said, gloriously. Towards the end, they were badly coached. I don't think that's debatable!