Make any moves? Or stay put?

[styles]

Currently in 4/10 in my yahoo league. Should I look to improve any areas specifally by trades or waiver wire? Any advice/criticism is greatly appreciated. Thanks

10 team Daily H2H 6x6 scoring (R, RBI, HR, SB, OBP, TB x K, W, L, ERA, WHIP, SV)
C - Posey
1B - Tex
2B - Phillips
3B - Youk
SS - Tulo
OF - Ethier
OF - Granderson
OF - C. Gonzalez
Util - Fielder
BN - Choo
BN - Rolen

SP - Lester
SP - Wainwright
RP - Nunez
RP - Aardsma
P - Axford
P - J. Garcia
P - Pettitte
BN - Burnett, Lilly, Nolasco, Carmona