Why do you keep assuming that the reason I think Barton won't be a good tackle is because of his arm length? I think it's part of his problem, but the thing that bothers me the most about him is his playing strength. He looks like he struggles on an island in pass protection. I understand that he's athletic and can be an asset in the running game, but if he was going to be a left tackle for me, the number one thing I would want him to be able to do is pass block. Maybe you are right, and he eventually gets there, but I have reservations.