The way I see it is that Buffalo is stuck with Fitz and have no intention of going to get an upgrade next year. If that does prove to be the case, they have to load up with weapons. The only way Stevie is staying is with the tag and if they can get one of the top 2 WRs in the draft, the offense could get interesting (especially if the line stays healthy.)
The offense is closer to being good than the defense so why not load up on one side of the Ball? After the first round, load up on pass rushers and try and steal one in FA.