Wekk 11 RB Start. Ricky Williams, Brandon Jacobs, Matt Forte? Pick 2.?

Well with Ronnie Brown likely being out this Thursday, Im thinking I need to start Ricky Williams. My normal 2 starters are Brandon Jacobs and Matt Forte (seemingly good picks at the draft, but not really too impressive in fantasy this season). So....Should I start Ricky and bench one of those two? Is so, who should I sit? Thanks!