I have defended coaches such as Linehan in the past and I will tell you why. Linehan got the blame, but he was very limited to calling plays that Dak was able to execute. Calling plays that had the WRs run routes that called for back shoulder passes couldn’t be called and completed successfully. Some plays with WR slants couldn’t be called either. The offensive play book has to be dumbed down and it was limited due to having a young QB that had never played in a pro system that was similar to the offense the Cowboys use. I could go on and on but these are just a couple of examples of how the coaches was limited by the players talent or lack talent. You do have a good point about coaches not adjusting and Marinelli is a good example, but he is not the only coach that has this problem.