Please rate my Keeper team

[Lsquad]

I drafted in my 5th year keeper league (i finished third last year), and wanted to get the Cafe's opinion about my squad. tell me what you think, where you think i need to improve, and what you think my chances are of taking back the league title

QB: T. Brady (Keeper: 1st overall 08 )
RB: M. Turner (Keeper: 8th round 07)
RB: S. Greene (8th overall)
Flex: A. Foster (6th round)
WR: C. Johnson (Keeper: 9th overall 07)
WR: M. Colston (keeper: trade 09)
TE: D. Clark (2nd round)
Def: GB (8th round)
K: M. Crosby (10th round)


BN: M. Barber ( 5th round)
BN: D. McFadden (9th round)
BN: J. Best (3rd round)
BN: R. Bush (8th round)
BN: P. garcon (3rd round)
BN: B. Berrian (7th round)