I thought Richard Smith was our DC? Ahhh, I hate it when teams invent all kinds of weird new titles, totally screwing with the sense of hierarchy ;-)
Although, with the number of "coaches" we have, some creative titling is probably a must...
From what I understand it was a co-duty. Smith formulated the gameplan and Muschamp called the actual plays (or was it vice versa).
In regards to the Capers comment I have no worries. The guy is a defensive genius. Just becuase he had a rough time in Texas doesn't mean anything. The guy had the whole show in his hands then, not just the defense.