Chess, not checkers.
The Falcons are going to move their defenders all over the formation in 2015. I can't know that for certain, but call it an extremely educated guess, and it's not one that should raise any hackles.
If you're cringing, it's because we've come to conflate the idea of players moving around the formation with Mike Nolan, who took that to an illogical extreme in 2013 and 2014 by dropping players who had no business being in coverage back as deep as safeties. We're assuming Quinn and his staff won't be guilty of doing that, and I think that's a fair assumption.