I would love to see Furman move to RB - I've been campaigning for that for a while. It doesn't look like he'll get snaps any time soon at S, with guys like Wilson getting snaps over him already, Gant and Clark coming off redshirts and Dymonte coming in.
Furman was a great RB in high school, and seems to fit what Borges wants at the position. Plus he's really fast. Give him a try - all he's doing is special teams now anyway.