RB, WR and TE week 3 questions

[DTG316]

Hi guys. I have a depth at each position but who do i start for week 3?

RB: Pick 2 of 3

Chris Johnson@Jets(how can I sit him, but CBSsportsline and a few other sites have him rated as a flex player at best this week)
Brian Westbrook vs KC(great matchup but will he play?, and if he does how much?
Tim Hightower vs Indy(great matchup vs poor run D, but do I consider him over the other 2 studs?)

WR: Pick 3 of 4

Anquan Boldin vs Indy
Braylon Edwards@Balt
Lee Evans vs NO
Marion Manningham@TB

TE: Pick 1

Greg Olsen@Sea
Visanthe Shiancoe vs SF

Thanks guys!!