You're overrating Moore. Henne and Moore are pretty equal, but they're both backup quarterbacks.
So on this thread, what happens if we lose Moore? Um, what happens if Flynn leaves the Packers and signs with the Seahawks, if Kolb leaves the Eagles and joins the Cardinals, if Cassel leaves New England and joins the Chiefs?
Pretty sure none of those teams are saying DAMN I wish I had that backup quarterback we used to have on our team. He doesn't sweat all over these clipboards like these do.
Who the hell cares, they're backup quarterbacks for a reason. Sign Devlin, draft a 6th-7th round quarterback, or get an undrafted one and we good.