Trade Offer: Chamberlain, McLouth, Wieters, Garza...

[Rotowahoo]

Would you make the following trade?

Give up:
McLouth $5
Chamberlain $9
Pedro Alvarez (farm)

Get:
J.Peralta $7
M.Garza $5
M.Wieters (farm)

League: $280, Roto, 5x5, 15-offense, 10-pitchers, 3-farm, Keep 5-10

Potential keepers:
OF - Braun $5
OF - Granderson $7
OF - B.Upton $6
OF - (McLouth $5)
P - Billingsley $5
P - C.Lee $5
P - Volquez $5
P - J.Cueto $5
P - (Chamberlain $9)
Bubble: H.Blalock $5, J.Maine $5

I like Garza a lot, Peralta is coming into his prime, and Wieters could be big in a hurry. For some reason Chamberlain scares me. Thoughts?