Setting a goal is not the main thing. It is deciding how you will go about achieving it and staying with that plan. - Tom Landry
Tom Landry was probably the most organized and methodical manager of an NFL team from the position of a Head Coach in the league's history. There was a reason for everything he did and it centered around a specific plan that he strictly adhered to.
Tom Landry knew how to build a team and maintain a high level of standards during a prolonged period of time. There were always issues and obstacles, That is normal. However, Landry always knew what to do when these situation surfaced because he had contingency plans for everything.
A plan only works when it is being followed by all involved. Any deviation from the plan corrupts the results. It creates uncertainty and doubt which ultimately leads to substandard results.
Before someone decides to build something, they have to know what they going to build. They have to decide on the skills and attributes necessary to create. They need everyone to be on the same page, fully committed to the plan.
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Jerry Jones does not have a plan. He never did. He wouldn't know where to start.
Jerry Jones is the living embodiment of that corruption I speak of. Every decision he made was in total disregard for the plan put forth by the coaching staff.
You can tell when a new head coach has the potential to succeed because one of the first things he does is he describes his plan and exactly how he is going to succeed.
Jimmy Johnson made it clear from day #1. The offense will be balanced with a big powerful offensive line. The defense will have speed and depth. Their intensity will remain high throughout the game as a result of a rotation.
Jimmy Johnson left because his plan was being corrupted by the actions of Jerry Jones. Bill Parcells left for the same reason. I suspect that contract negotiation broke down with Mike McCarthy because he wanted an increase in authority to better implement his plan.
The Cowboys aren't even year away from creating a viable plan.