First off welcome to the Cafe Bean
As for the DET RBs right now Pinner is the starter but I expect Jones to supplant him by the 2nd week or so. Pinner got 2 starts last year and only avg 2.5 yd/carry all season. This shows me that he didn;t exactly stun the coaches in the motor city. Jones on the other hand is a bit quicker but needs to work on his pass catching. Both are relatively the same size as each other so I don't see one becoming a shoryardage guy, which ends up a the infamous RBBC. And don;t forget Mooch is there and he tore our hearts out over Hearst or Barlow for several years in SF. I think Jones is the safer bet to pick up though so I'd go with him.
As for Bennet you will see Moe go back to the shortyardage and 3rd down situations and Smith will end the odd man out this season barring another Bennet injury. Smith still has a shot at the job but Bennet is the starter unless he gets blown out of the water.
As for Jared I wouldn;t expect much at all from him this season. I do think they plan on grooming him as either a quality backup or to shop him later to another club. Look for them to bring in Warner or another veteran to train the both of them but Eli has the job locked up and Hefty Lefty will be no more than a #3 for now.
Hope that helps
No really, I'm not having a bad day.
What the hell.... is goin' on.... in the NFL?!