My personal opinion? TD didn't ignore the OL, he just did a mediocre job of rebuilding what was already a mediocre pass-blocking line when he got here. The starters at the end of the JB/Wade Phillips era:
Marcus Spriggs - Jamie Nails - Jerry Ostroski - Ruben Brown - John Fina.
Fina was a Polian holdover nearing the end of his career. In eight drafts as GM, Brown, Corey Louchiey, and Robert Hicks were Butler's only first-day OL picks. (Guess one out of three ain't bad. )
Without looking it up, Joe Panos is the only veteran FA I can remember JB bringing in... and I spent two or three unenjoyable seasons trying to defend him on TSW before the Bills finally dumped him.
Donahoe drafted a first-day OT in each of his first two drafts. He signed veteran FAs (Teague, Marcus Price, Villarrial, Bennie *cough* Anderson.) I'll give TD credit for trying, but I can't argue with the results (or lack thereof).
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GoBiB: after the way last season ended? 8-8 would be decent progress. But between the front office/coaching shakeup and the roster movement yet to come, I don't have a friggin' clue what this team is going to look like in September. Your guess is as good as mine...