Why Matt Garza’s trade value is higher than I think

When I wrote about Matt Garza's trade value last month I showed that it's not that high. Aside from the Cubs kicking in some money to cover the rest of his salary this year, the Cubs couldn't expect to get all that much in return. People have consistently told me I'm wrong. Apparently some anonymous GMs were on record (can you really be on record if you're anonymous?) as saying he had more trade value than Cole Hamels or Zack Greinke, both of whom are far better pitchers. The additional year that Garza has beyond this year certainly matters, but I've argued that it's not a cheap year. If Garza were under contract for $12 million next year I've wondered if people would feel the same way. He is essentially under contract for $12 million next year because that's what he'll likely receive in arbitration. So why is Matt Garza worth more than I think? The first reason I can come up with is that he's pitched in the AL East. From 2008 through 201...