 But Greg Cosell says the NFL Films guy pointed out that the roster construction in Dallas is going to doom Dak Prescott and implied that that's part of the reason he's not getting a deal, saying that Dallas does not have a running game. They didn't run the ball that well last season. Now you look at the Cowboys and there are issues there in the run game. The offensive line does not appear to be as good as it was last season. Kind of obvious here.