Bingo. Looking at his FanGraphs defense page, he actually had a good year last year with a 5.8 UZR and a 6.7 UZR/150. But his career numbers are kind of ugly. His net career UZR is -18.8. As recently as 2012, he had a UZR of -7. When I speak of regression, I factor in defense, of course, and I think his defense is more prone to regression than his offense, considering career numbers plus old legs. I don't think his overall WAR will be close to Florimon, but his dWAR will be much worse over the next couple of years. I also think you gloss over variability in his baseline, assuming 2013 is his baseline. I think it's closer to a career year. In six of his eight years, his WAR has been at 2 or below, twice below 0. He's had two career years (2010 and 2013). He's prime for regression from those, not even factoring in age. In three of the last five years, Hughes has had WAR in the 2.5 range. He's much more consistent. Unlike Drew, he's never had a negative WAR. And, also unlike Drew, he is three years younger, just entering his prime this year. Finally, I don't think you can over asses park effects. Something like 12 homers Hughes gave up last year are routine fly balls in Target Field. Something like 12 doubles off Drew's bat in Fenway last year are routine fly balls in Target Field.