Doubt very much that the Avs would trade RoR for a young D that's never even sniffed close to 20 mins of average playing time per game. That doesn't mean he doesn't have good upside but it's still very much a risk because you don't know how good Sbisa will play when you do give him 22-25 mins per game.
Plus this kind of stuff:
http://hfboards.hockeysfuture.com/sh...17&postcount=2
Do your research Avs fans!
Somebody said it in another thread, 'a trade for RoR will hurt...BOTH SIDES gives up something they don't want to'.