12 Team Mixed Roto League Question. Do I stand pat?

[Godfather80]

7x7 with offensive Ks, OPS, Complete Games, and Home Runs Allowed as the extra categories. I'm in a dogfight for first. I'm considering trading either Liriano or Bonderman (because I have very large leads in WHIP, ERA, and Strikeouts) for a big bat like Utley, A. Jones, Soriano, Manny.

Am I panicking? Should I try for a deal to improve my offense? Or should I wait for Pujols/Abreu/Giambi to come around?

Here are my current starters:
C- M. Barrett
1B- Pujols
2B- F. Sanchez
3B- A. Beltre/Youkilis
SS- J. Rollins
OF- B. Abreu
OF- Miggy Cabrera
OF- Edmonds
Util.- Giambi

SP- Liriano
SP- Bonderman
SP- Sabathia
SP- Willis
SP- Billingley/Hamels/Olsen
RP- Papelbon
RP- Wagner

[bugstud]

start cab at third and get a real of bat vs beltre I think. youk/beltre is way youk right now. what's your off rank currently?

[crockpot]

if your leads in these categories are large enough that a trade of one of these guys won't really cost you much, this trade is definitely a move you should make, unless it's a keeper league.