I'm stacked at RB, which 2 of the 4 to start this week?

I gotta go with Mendenhall and Jacobs..."Mendenhall" Willie Park is still out and the Lions run defense is trash...."Jacobs" G-Men r primarly a run'n team, he is there go to red zone back and with Eli not 100 percent they will rely on the run even more then normal