No, they were 7th in rushing efficiency according to FootballOutsiders.com.
I think you would be surprised how a truly dynamic back with speed, power and vision would perform behind this line. He would not only make explosive plays but open things up for the passing game.
We have Romo, Dez and Witten. I don't think most of the people you are arguing with would decline to add QB early but a guy like Henry would have a chance to smash the rushing record.
And that comes with Russell Wilson's ability to run the ball which not only counts Wilson's production as a runner, but it helps a RB like Lynch as well. We don't have that with Romo and quite frankly, I think Wilson is going to be a once in a lifetime QB because he can throw the ball effectively, run effectively and doesn't get hurt. Usually we don't see that unless we get a Cam Newton type.
We couldn't win last year in large part because we had no passing attack. A great running game will not open up the passing game like a great passing game will open up the running game.
I think even with Denver this year, they still had Peyton Manning who was good enough to keep defenses off kilter...if by anything on reputation, alone. And as Alexander pointed out...you're not going to sustain great defenses for very long in this league because of the salary cap and players on defense are more than twice than likely to get injured than offensive players.
And believe it or not, I generally tend to believe that the RB position is undervalued in the NFL. I just don't see it being a problem for the Cowboys at this moment and we have much bigger fish to fry.
YR