Flex position... AJ Green or James Starks or the questionable Beanie Wells?

Right now I have CJ and Mathews in my RB1 and 2 slots... And I have Hakeem Nicks and Dwayne Bowe in my WR spots.. I was leaning towards AJ Green for the flex but I like Starks matchup this week, being that Ryan Grant is banged up... Beanie Wells is a gametime decision and I really can't afford to mess around with him because I'm going to be at that Giants Cardinals game this week and I won't have access to a computer to remove him from the lineup if he's called out for the week... I could also start Green at WR instead and bench Bowe .. what do ya think?