In this same vein with Bill Callahan, don't forget Dan Reeves. Wade brought him in to 'help' the dummy coordinator who to this day doesn't know how to handle the running game. I believe that was after Tony Sparano (RIP), the previous 'run game helper', left for a head coaching or coordinator job.
Anyone else remember that? Reeves had started to work and had an office and everything, until he was disrespected to the point of punching a clock and left. Why? Because Garrett was threatened by yet another better coach.
If you want the lowdown on why this team and its offense struggles, look no further than rushing attempts.
When it's Garrett and Linehan involved, this team ranks near the bottom of the league in even trying to run the football. Because the two pass-happy idiots can't or refuse to call them (feel free to take your pick of the two). Look no further than this year if you'd like. Despite the investments made in the line, and having a top 3 running back and #4 overall draft investment, the Cowboys are 25th in rushing attempts.
While your passing game sucks, and your quarterback is struggling, You are 25th in rushing attempts.
While your running back is tied for the league rushing lead, you are 25th in rushing attempts.
Despite the fact that running the ball is the only thing that's working, you are 25th in rushing attempts.
When people say that these coaches coach to their team's weakness and not to its strengths, they're absolutely right.
Garrett and Linehan are two pass-happy morons. And they always will be. Despite having a team built for and begging to run, they would rather pass the ball in futility and failure.
You want to fix this offense? Start by firing those two bozos.