My thoughts exactly. The Bills were actually in the top half of the league last year in terms of sacks given up - 34 compared to 56 by the Bears. While Wood played well at C at the end of the season, you've got to think that some of the problems this preseason stem from the fact that, once again, someone's messing with the chemistry. While they weren't stellar last year, they were not really a cause for major concern, so why go and fiddle with it when you've got so much else to take care of? Hangartner may not be phenomenal, but with Wood at RG they made a relatively solid middle line.