New at Fantasy Baseball. Any Changes???

[Trumpethead]

What changes need to be made to this team to contend down the stretch?? I'm currently in 1st place in my league. Thanks!

C Joe Mauer
1B Travis Hafner
2B Dustin Pedroia
3B Mike Lowell
SS Jason Bartlett
OF Eric Byrnes
OF Willy Taveras
OF Corey Hart
Util Ryan Braun
BN Marlon Byrd
BN Robinson Canó
DL Michael Cuddyer

SP Josh Beckett
SP Jason Marquis
RP Joe Nathan
RP Mariano Rivera
P Pat Neshek
P Eric Gagne
P Yovani Gallardo
BN Boof Bonser
BN Dustin McGowan
BN Shaun Marcum

[ScottishBaseballFan]

What format league are you in? If you're currently in 1st place, I wouldn't make too many changes. It really comes down to what categories you can sacrifice and what you need improvement in.

[Trumpethead]

I'm in a 12 team Roto league that scores R,HR,RBI,SB,AVG and W,S,K,ERA,WHIP.

Thanks.