Well the Buffalo Bill's idea last year was to keep their potent offense, and add a couple of key free agents in Takeo Spikes, Sam Adams, and Lawyer Milloy.
Well the scales tipped the other way meaning the defense sky-rocketed to the 2-spot, and the offense fell on its face.
For the Bills to be successful they will need either Lee Evans to mass produce immediately, or Josh Reed to wake up and smell the coffee. The offensive line is fine, but if Bledsoe can't find any receivers open and swallows the ball on each play this team is going no where. A productive tight-end could help this offense out a lot.
As for the defense, this is the typical 'lack of offense makes the defense looks good' trick. For about a month last season, opposing teams only needed to score a single touchdown to beat the Bills and that had a huge bearing on their defensive statistics. The Bills defense is good, but a lack of a consistent pass-rush will puncture this team. In my opinion, defensive end was a bigger concern than WR for this team, and they didn't pick one up.
You can't have it all, but this team is close. Drew Bledsoe still can be a top 5 passer in this league when everything goes right, but Lee Evans has to step in and replace Peerless Price. Another injury to Eric Moulds and Buffalo will be praying for 7 wins.