Started strong, but fading FAST!

[Titans_Fan]

I am currently 4th in a 6 team Yahoo! Roto league (NL ONLY). We score most batting/pitching stats, but not errors.
It seems like my entire team is currently in a collective slump! I could really use some suggestions. I will try hard to help in return, but my baseball knowledge is VERY limited.

ROSTER
Batters
C: Molina (SF)
1B: Gonzalez (SD)
2B: Kent (LAD)
3B: Wright (NYM)
SS: Rollins (Phi)
OF: Lee (Hou)
OF: Pierre (LAD)
OF: Cameron (SD)
Util: Furcal (LAD-SS)
BN: Willingham (Fla-OF)

Pitchers
SP: Wolf (LAD)
SP: Snell (Pit)
RP: Saito (LAD)
RP: Wickman (Atl)
P: Alfonseca (Phi)
P: Wheeler (Hou)
P: Bergmann (Was-SP,RP)
BN: Oswalt (Hou)
BN: Gorzelanny (Pit)
BN: Morris (SF)
BN: Marquis (ChC)

[Titans_Fan]

Just offered Saito, Oswalt, and Willingham for Peavy and Hunter Pence... I'm so far back in saves I might as well give up and work on other stats. Assuming I care nothing about saves, does this trade seem fair to both parties? The other manager actually has a chance with saves, so I figured he might go for it. Oswalt is far better than he has been playing, but I'm not sure when/if he will pull out of his funk...