I agree LG is a concern. From what I've seen, all of the runs for big yards have come from the right side of the O-line.
"I hate saying this but Dick Jauron was right, "You can never have too many DB's" - AAAGGGHHHH!!!! Curse you for bringing up skeletors name. I hope you don't say next "It's hard to win in the NFL."
I'm not worried about Cordy Glenn as he kept one of the leagues best pass rushers [Jared Allen] in check. What I would like to see in the offseason is the Bills draft a solid LT, and slide Glenn to LG. If that happens, then the Bills have the potential to have the best O-line in football. This is not to say that Glenn cannot play the LT position effectively, I feel he would be better suited as a LG.
Good points about TE & FS.