Should I look at trading some guys ahead of time?

[CaptainWeed]

So far even with a little bad luck (crisp and helton) my team has been very solid thus far. How many of these guys are going to keep it up though and who should I cut my ties with while they are high? 12 team h2h 10x10 league

Pitching-GS,IP,W,CG,SHO,SV,OUT,K,ERA,WHIP
Hitting- R,H,1B,2B,3B,HR,RBI,SB,AVG,SLG'

C-Willingham
1B-Gibbons
2B-Soriano
SS-Jeter
3B-Arod
OF-Mench
OF-Drew
OF-Wilkerson
OF-Murton
Uti-Crosby
BN-Paterson, Phillips, Barmes
DL-Crisp, Helton

SP-Schmidt, D. Willis, VAzquez, K Escobar, D. Haren, O perez, E. bedard
RP-Wagner, Nathan, Valverde, Paplebon

Thanks in advance for all help