I think it's obvious what's going on here. Tressel has had conversations with Beanie, telling him he has to be a warrior and play through the pain. Tressel knows that if the Bucks are to get back to the National championship game, Wells must be a force. Make no mistake about it. Last years championship game loss to Florida stung the players, but it stung Tressel 10 times as hard. There is nothing he wants more than to get back, and he can smell it. Obviously, the running game opens up the passing game for Beockman, and without Beanie, there is no running game. Let's be honest, while he has improved, Mo Wells is not a threat.
Obviously, Beanie has gotten the message (220+ yards on an injured ankle). I saw at least once that Beanie was waving off the coaching staff, when a replacement was sent in. He has gotten the point. Tressel knows that Beanie is the key to this years championship game.