James C Asked: What team should I pick for my fantasy football division finals?

Just wondering if anyone has any suiggestions of changes I can make on my team;

QB: Newton
RB1: Maurice Jones-Drew
RB2: MIchael BUsh
Flex: Shonn Greene
WR1: Hakeem Nicks
WR2: Jordy Nelson
TE: Kellen Winslow
D/ST: Bengals
K: Jason Hanson

Bench
Matt Ryan, Willis Mcgahee, Laurent Robinson, CJ Spiller, Denarius Moore

It's a 10 team PPR League
My big question is over QB and Flex, should I go for Ryan over Newton and Spiller over Greene? Or any other changes?
Thanks, had a brutal beat in my other league and I really want to go to the finals in this one!! Good Luck