I was watching Shanle yesterday and have been paying close attention to him the past few weeks. He doesn't fill the holes. He waits for the linemen to either get to him or he runs around them. This provides big holes and creases for the running back. He needs to fill the holes and attack the blockers in the hole to decrease the amount of space a running back has to get through. I don't know if it is lack of recognition or if he wants to avoid contact or maybe a combination of both, but it has to change. He also doesn't scrape well to the outside and that gets amplified because the outside linebackers have not learned how to keep outside containment. Linebackers are the key to this defense and they are not very good right now. I don't know if bringing in John Abraham will fix all the linebacker problems or if these young guys will get it at all. Why not get Romo in the game in the 4th quarter? Not so much to get Romo some experience, but to keep Bledsoe from getting his head beat in. I just don't understand that at all.