I was actually just thinking some similar things Feva. Stacey Andrews is also pretty solid as a run blocker.
It's a pipe dream, but imagine if they swapped MJG for Herremans and put Cole in at center and drafted a guy like Unger or Eric Wood to play center, then decided they were going to pound the ball with Moreno and BWest. That'd be a lot of beef to run behind. Sadly, it'll still be pass pass pass, but McNabb might not touch the ground more than 15 times all season.
The Peters addition will be most apparent when running left this season. Thomas was always great as a pass protector, but left a lot to be desired in the run game, especially the past couple of years. Peters is a mauler, put MJG next to him and smash people in the mouth running left.