The key take-away from the Martz analysis is that BOTH the QB and the Receivers were playing undisciplined football. It doesn't matter how ingenious your scheme is if the players don't have the discipline to implement the scheme. What I got out of watching the Martz analysis is that the coach had not instilled discipline. Since McCarthy wasn't running the offense, the responsibility to instill discipline was Kellen Moore's job.
I thought Martz was exposing Moore - not necessarily for have a bad scheme, although there was some criticism of the scheme also, but mostly for allowing his players to be so undisciplined in how they played. This criticism hit both Dak and his receiver corps. There are a lot of young coaches who are enamored with their own creativity and neglect the need to instill discipline. The one common theme among great NFL head coaches is that they are disciplinarians. They enforce discipline.
And herein lies the problem with the Cowboys' culture. Will Jerry Jones allow his head coach to be the disciplinarian he needs to be, or will he continue to allow the players to come to him and complain, and then overrule the Head Coach?
Wade Phillips famously wanted to enforce rules, but Jerry wouldn't allow him to do so. Garrett went along with Jerry and lasted a long time, but never won anything. Both Jimmy and Parcells were allowed the freedom to discipline players, but Jimmy got fed up with Jerry, and in the end, after the Terrell Owens signing, so did Parcells. Switzer was undisciplined, but the culture established by Jimmy had trained the players, and Troy Aikman became the enforcer. But he resented having to play the enforcer, when the coach should bear that responsibility. Gailey tried to establish discipline on an undisciplined team, and was shown the door. And Campo was just a lackey to get them through Salary Cap hell.
So the bottom line is this: Will Jerry allow McCarthy to become the enforcer he needs to be to turn this team into a winner? If he gives McCarthy the freedom, the Cowboys have a chance. If he doesn't, then McCarthy will fail, and so will Dak. You can blame Dak, or blame the receivers, or (like me) blame both. But ultimately, Jerry is at fault for allowing a culture where players can undermine the authority of the Head Coach. Until that changes, everything else is just shadows and dust.