Walt Patulski. With Kelvin Benjamin gone, we need a new whipping boy.
Less facetiously, I'm going to go with the unusual choice of Pete Metzelaars. Because he's probably the best TE the Bills have had in their history, and while this franchise has shown it can acquire one way or another quality WRs, RBs, LBs, linemen, and other positions, they can't seen to get a TE, via free agency or draft, who doesn't end up being Tony Hunter.