Need advice guys! BJ Upton for Matt Holliday? Who ya got????

[cassplaya4]

In desperate need on SB's and I have been offered Upton for Holliday, is now the time to make this trade? Upton seems to be lighting it up and the stolen bases are obviously there.

Brian McCann (Atl - C)
Adrian Gonzalez (SD - 1B)
Aaron Hill (Tor - 2B)
Evan Longoria (TB - 3B)
Derek Jeter (NYY - SS)
Alfonso Soriano (ChC - OF)
Carlos Lee (Hou - OF)
Matt Holliday (Oak - OF)
Nate McLouth (Atl - OF) UTIL
Todd Helton (Col - 1B) BENCH
Josh Hamilton (Tex - OF) DL

Zack Greinke (KC - SP)
Jon Lester (BOS - SP)
Ted Lilly (ChC - SP)
Chris Carpenter (StL - SP)
Kevin Slowey (Min - SP)
Tommy Hanson (Atl - SP)
Francisco Cordero (Cin - RP)
Heath Bell (SD - RP)
Kerry Wood (Cle - RP)
Ryan Madson (Phi - RP)
José Valverde (Hou - RP) DL