When you watch the running plays you can see the Cowboys OL did a good job pushing the defense back, and that is a stout defense. I was surprised to see how many time Vita Vea was on the ground and put there by the Cowboys OL.
This team has to at least try and run the ball. But now with Rush at QB, teams will load up the box and dare the Cowboys to throw it. If they see 8 and 9 man fronts they would be stupid to not try to throw.
One other point, the Bucs were playing tight coverage because they did not fear the run as much. But if teams load up to stop the run, even the Cowboys mediocre WRs should be able to get open against what should be looser coverages.