I always have optimism for change. Especially when it's the kind of broad sweeping change we're about to see. New guys at ALL of the important franchise positions.
I think if we hit the bullseye on any one of the GM, HC, or QBs we acquire, the franchise will at the very least start winning games again. 7-9s and 8-8s. If we hit on two of them, we're challenging for the division. If we nail all three, then we've successfully obtained what all the other great teams have around the league, and can start seriously doing some damage.
If we hire another Pioli, however, who then hires another Haley/Romeo and drafts/trades for a Matt Cassel and becomes irrationally attached to the turd, then we're doomed like you say.