Originally Posted by osuceltic
That leaves out a lot of the story -- where he was playing for much of that time, the impact the park had on his performance, etc.
I think you are WAY overstating park effects in regards to both his struggles and his success. Of his 1466 ABs from 2009-2011, only 303 came at Petco. Nearly two-thirds of those ABs (188) came in 2011 when he OPSed 658 at Petco and 673 overall. Hardly a monumental difference.
The same goes for the influence of the GABP on his numbers in 2012. Sure, he was better at home, but only marginally so. He posted an 896 OPS at home this year and 856 OPS on the road. He had a good year. The park helped, but it was just icing on the cake. It didn't cause his great year in 2012, just like it won't prevent a return to normalcy in 2013.