Would not have a problem if Grimes got it for one or two years only - best man for the job say I!
Grimes is the really obvious choice, big plus in this is that he's got so much going on outside footy (not dissimilar with Rance though different circumstances) that we may keep him 100% committed an extra season or two by giving him the captaincy.
I'd have no problem going co-captain Grimes/Dusty and letting Grimes handle all the media duties. Dusty richly deserves the honour if it means something to him to have it and is clearly a leader of the club and our most inspiring player.
Longer term, I'd be very surprised if Short doesn't come strongly into calculations.