I think its interesting to note that in the one week we had Costa at Center we blew the top off the run game. Now I'm sure some of that was Baltimore's struggles stopping the run. But I also wonder how much was Dallas geetting some run blocking inside that opened a whole new set of possibilities. Ryan Cook, our primary Center last year, is ahorrible run-blocker. That is part of why I think we'll have a better run game - the upgrade at Center.