The Cowboys have the number 1 offense in the league and we are talking about it not working? I admit, they have had some problems running the football and the coaches have clearly lose confidence in the running game or something, but to me the problem is red zone offense. I saw a stat where the Cowboys are 7-18 in the redzone in their 6 losses and 2 for 6 in their last two games (both losses). You can dink and dunk all you want but if you get inside the 20 and can't punch the ball in somehow all you did is work the clock against yourself. This is also where we see the Cowboys make some bad playcalling mistakes. Remember the Jets game when they went for it on 4th down and lost 2 yards? Or the Vikings game where Dak was throwing it like a mad man and for some reason they switched to two running plays only to fail to get any points? In the Bills game, Dak threw that miserable pass at Zeke's feet on 4th down?
There are games when the offense will struggle. That's pretty normal. In those games the defense needs to step up and make plays to help out. So do special teams. Jimmy used to say their are 3 phases of every game, offense, defense and special teams, and you have to win 2 of them to have a chance to win the game. The Cowboys almost never win two of them, especially against good teams.