What Can Flex will work with my Team..Help

[GhettoBabyJesuz]

Starters
QB- Peyton Manning
RB- ArianFoster
RB- Ray Rice
WR- Wes Welker
WR- Dez Bryant
Flex- Santonio Holmes
TE- Aaron Hernandez
D- Steelers
Kicker- Stephen Gostkowski

Bench
Peyton Hillis, KC RB
Mark Sanchez, NYJ QB
Kevin Ogletree, Dal WR
Randall Cobb, GB WR
Danny Amendola, StL WR
Davone Bess, Mia WR
Scott Chandler, Buf TE