I can see Rhodes being the 3rd down back, as Jordan is clearly a better runner but Rhodes is an equal in the blocking department and that will save Jordan from taking a lot of big hits from blitzing LBs, and for those who say Jordan catches well out of the backfield, get past the stat lines. He's got below average hands, just tons of opportunities. I think Rhoads is in the top 1/2 of 3rd down candidates and Jordan needs the relief to hold up for the long run. I see a benefit to Jordan who may see a slight drop in his game-to-game production but may leave him healthier as the season progresses.
If you can't afford to lose 2-3 ppg on Jordan, sell high. I thik he's worth holding, and tryin to nab Rhodes real cheap after a couple weeks of 3-4 fppg if your roster can hold a solid handcuff.
As Yudkin pointed out, Jordan is second in yards from scrimmage so far. Rhodes will take backup and relief touches at most until Jordan produce at a lower clip. If he has below average hands, why do they keep throwing the ball to him--
he did have 70 catches 2 years ago. Half the battle is opps. He put up solid numbers against a weak D in Detroit and a decent one in Denver. Unless you fear injury, I see no reason why you trade the #2 yardage RB who you prolly drafted in the 6th round or later. He's more than likely outproducing half of the first round RB's right now, especially in PPR. Oakland's WR's are below average and Jordan provides a nice outlet.
I'm talking about real football, and why Rhodes will probably be a 3rd down back upon his return. He gets so many opps because of Turner's offense in '05 and it looks like Kiffen is very similar. That and the fact that Porter can't get open and QBs haven't been able to wait for routes to develop downfield.I'm not saying get rid of Jordan, I'm saying I expect him to take a hit of 2-3 fppg upon Rhodes' return. I'm saying that this is an opportunity to
sell high right now, not sell at all costs.

Personally, I'd hold him unless he's #3 of 4 startable RBs on your team. If you can get a top 7 WR for him and still have viable options @ RB, you do it before he's only worth a top 15 WR.