The safe bet is washington and Moreno
The higher risk with more upside would be washington and torain. If shanny lets torain get a bulk of the carries, he is the best option of that group. Its just very unpredictable if he will get those touches.
I would start washington and torain on my team, but im somewhat of a gambler, so take it how you want.
2012 Playoff Bound Teams
RB: McCoy, Mendy
WR: CJ, VJax, Stevie Johnson
RB: Rice, Grant
WR: Austin, Wallace, Welker