You make some decent points here, but I really disagree with your assessment of Langston Walker. He was a mediocre RT. He was weak in the running game and a pretty good pass protector for a RT. That kind of player is not worth what the Bills were paying him. The way I read things, the Bills basically said that if Walker is going to stay on this team at what he is getting paid then it's going to be at LT. He failed (partly because of his attitude, IMO), and was cut. I think that Butler would've done just as well, if not better at RT. Hopefully, we'll see next year.