I have Warner and Flacco, who should I start

RB wise I have
Mendenhall
Portis
Ray Rice
Steven Jackson
Mewelde Moore
Carnell Williams

I can start 3 one as a flex

I have Flacco starting in my league over Rogers right now, he's been solid

I'm starting Flacco this week as well. He's putting up double digits pretty consistently.

As for RBs,

I would start Mendenhall for sure, and probably Ray Rice. S.Jax is up against Minny and that's a horrible matchup, and I'm not so sure that Carnell Williams will be able to get a lot of yards against Philly this week.