We're on the same page wrt the bolded, Hope.
I do think most regimes will try to make a move at QB fairly quickly, because there is often the pressure to win now. If the last crew couldn't get it done in a QB driven league with a certain guy, turning the page could be seen as a move of self-preservation. The honeymoon period is finite, and real progress has to be shown before the window closes or one adds their name to the long list of failed NFL coaches.
The Seahawks and Redskins underwent the same transformation as the Bills at the same time. Each has had several transitions at the QB position, starting veterans acquired by trade, hold-overs, retreads, and draft picks. By contrast, the Bills have stuck with one guy (I'm ignoring the Trentative aborted project) over that same period with inconsistent results and regression in overall record.