My #2 RB is so hard to set, any advice?

I have Mendenhall who always starts, then the #2 is either Shonn Greene (who isnt even gettin the start), Daniel Thomas (who shares time with Reggie Bush), Sproles (who only gets receptions really), and Jackie Battle who still needs to prove hes no fluke.
This league scores on every 10 yards rushing or receiving, and 6 for TD's of course.

If you're looking for someone consistent, it's Sproles. If you need potential upside for tomorrow, I'd take a chance on Battle, but Sproles is the safe play, he'll get you 9pts for sure, maybe even 15+ if he can break a couple of RACs

I like Battle , his matchup is tough...
Still!
Sproles would be my second choice, Green not starting today , if he does good wirh him...
Good luck!