What is the problem with the run game?

[Yojimbo]

I voted PA, but it's not just his schemes, it's the type of o-line he likes. We have no heavies, especially with Whit gone. Every lineman on the roster is 310 (Winston and Ced) or less. Nobody in the 325 - 340 range, which is the size you need to move these 320lb DTs off the line of scrimmage.