Mike Napoli was good here and has basically been the same hitter for his other teams. That 2011 season with Texas was one of those fluke seasons(like Erstad's 2000 season)
Dan Haren was a very good pitcher well before he even came to Anaheim, and he is actually not pitching good this season so I don't know why you are saying he's thriving
Rodney, like Napoli, looks to have had a fluke season as he has now reverted back to the Rodney he has been for his entire career
Ervin has always been and up and down player. He's had great seasons here and he ha had god awful ones. It's not really that big of a surprise that he's doing well this year after coming off a horrendous season, that's pretty much what he's been doing from the start