This should be a much bigger point of discussion.
First off, how many running plays does Dallas use? IMO, its 3 and they are generally badly telegraphed based on formation. They barely run play action. Their run play where they pull offensive linemen is so slow developing that you could time it with a calendar.
I really can't overstate how disappointed I am in McCarthy. The offense basically has no counters. You are supposed to set one thing up, then fake it later and go the other way. Run counters, play action, RPA, etc. This offense has the complexity of a kids team. As a result, defenses are basically sitting on the play because you can predict it based on formation, down and distance.
People have been going back and forth on KM vs MM. Why can't both be bad?
This is outside of Dak, who has his own pro's and con's.