Should I offer this trade? WHIR

[DiMoTik]

I'm a 10 team Yahoo! 5x5 roto league.

C- Geovany Soto
1B- Ryan Howard
2B- Ian Kinsler
3B- David Wright
SS- Starlin Castro
OF- Jeff Francoer
OF- Andrew McCutcheon
OF- Hunter Pence
DH- Paul Konerko
BN- Colby Rasmus
BN- BJ Upton
BN- Michael Cuddyer

SP- Chris Carpenter
SP- John Danks
SP- Shaun Marcum
SP- Brett Anderson
SP- Zach Britton
SP- Matt Cain
SP- Jonathan Sanchez
SP- Tim Hudson
SP- Roy Oswalt
SP- Dustin Moseley
RP- Sergio Santos
RP- Huston Street
RP- John Axford
DL- David Aardsma

I was thinking of offering Colby Rasmus and Chris Carpenter for Carl Crawford. Is it worth it do that deal? Am I giving up too much? I just like the thought of an outfield with A. McCutcheon, Hunter Pence, and Carl Crawford. Plus, if Crawford's season averages back up towards his normal season I'll be looking at a pretty nice month or two coming up pretty soon to offset his horrible start. What would you do? WHIR