Durability issues are a concern with Stevie. That said Woods & Goodwin also missed time last year. I'd keep Stevie for depth & the simple fact that the other WRs need to be challenged, not anointed as someone said earlier.
I'd keep him thru camp. In his prime will be 28 later this year & can be a veteran leader. If he drops off cut him. Only Bill with 3 straight 1,000 seasons.
I put the probability of the Bills trading back higher than us trading up. We traded back in 2013 to get EJ & a 2nd that yielded Kiko. If the Bills are sold on a guy like Odell Beckham Jr than I'm all for getting another 2nd round pick in a deep draft.
A Donald is another 6'1'' 285 DT who will get manhandled by the Pats or Jets OLine. We need a true NT, preferrably the best one in the draft R2 or later.