I read Tim Graham's thoughts in his AFC East Blog yesterday about Nick Mangold and his ability to block nose tackles such as Wilfork without assistance. I noticed that his size and intelligence are the same as Eric Wood. Would the Bills be better off to move Wood to center, his natural position, and move Hangartner to guard. Levitre played tackle in college and did a good job with the Bills at spot duty this year. Incognito could be resigned as the other guard. I wasn't overly impressed with Butler as a starter, but I think he is great as a back up at two positions.
So the line could look something like this:
RT: Levitre
RG: Incognito
C: Wood
LG: Hangartner
LT: 1st round pick
I think we would have some maulers for run blocking and some great pass protection.