It depends on improvement and declines for Castro, Pena and Renteria. Pena has been a 3-4 WAR guy before last year and Fielder has been anywhere from a 3 WAR guy to a 7 WAR guy. If Pena can get back to his 2008/2009 levels, he'll probably be within 1-2 WAR of Fielder, if not even with him. Castro was a 2.0 WAR guy last year and if he can improve on the rookie season (questionable, I understand), then he probably becomes 2+ WAR better than Renteria (1.3 WAR last year at 35). They could also be similar in WAR if Castro holds where he was last year and Renteria doesn't drop, though. Depends on how playing OF defense and age affect Berkman's numbers. Definitely possible, but I'd probably bet on the Fuku/Colvin platoon being better. I agree on Garza, both Dempster and Z are better right now than him. He has the most potential going forward due to age, though. I tend to agree on Greinke over Carpenter because of age and injury concerns. If you're looking at who's produced more in the past, Carpenter no doubt. But Carpenter's age and history of injury makes me prefer Greinke going forward. That said, if you want to put Carpenter ahead of Greinke, I'd hardly argue.