I don't think we have anything to worry about with Mangini. The D&C seems to have the pulse of the Bills and break everything before it happens. They didn't even list this clown as a possibility.
You think these guys are going to demand huge money? They just want HC jobs. The only "big money" guy out there is Mooch, and he has already said he plans to take some time off.
Two things:
1. Peters is not 350 lbs
2. Peters never ran a 4.5, he ran a 4.9
As a TE, he is big and slow with average hands. As an OT, he has potential to be above average. No brainer.