They did give Seattle a pick for the right to have Tarvaris Jackson stand in street clothes on their sideline every single game last year. And, yes, he is back in Seattle and playing pretty well as their #2 QB.
Your post oozes hostility though I am not sure why. Did you think it was a wise decision to release Nelson, who was effectively a starter in Gailey's spread offense, and ultimately spend 2 draft picks on the position?
While I am personally glad that the Bills spent some draft capital on their passing game, it is against the odds and thus a reason to be tempered (if not critical) when it comes to hoping a rookie QB and rookie WRs will immediately turn into a productive NFL air attack.
Taking a step back, the Bills did clear the decks to some degree at both positions, forcing their own hand as to direction on draft day. This is something that they have done with some regularity and it has not always worked to their advantage or to improve the team as a whole. The cycle of rebuilding continues.