He was also playing out of position. He should be playing guard, where his weaknesses (like his quickness) will be limited and his strengths (like his pass blocking) will be increased. Now, that said, I saw Joseph get to the 2nd level fairly well in their first preseason game, so maybe he has been working on his game. I remember from the pre-draft stuff I read about how astute he is and how much he studies game film and is constantly working on his techinique. Sure would've been nice to see the Bills grab him after a trade down, but I digress.