I was browsing MLBTradeRumors when I came across a post linked to FanGraphs. FanGraphs values Andy Laroche more than Jason Bay ($7.2 million to $5.5 million). I'm guessing that Bay's defense really hurts him here. Bay, while putting up an OPS of .872, had a UZR/150 of -15.8. He has a WAR of 1.2. Andy, on the other hand, has an OPS of .707 but has a UZR/150 of 4.8. His WAR is 1.6.
I'm not taking sides on whether or not the Bay trade was a good one or not but it is interesting to see that Andy is outperforming Bay by himself...according to FanGraphs anyway.