Corbin didn't have a random spike in performance last year. He started throwing his slider a lot more, and it's the best swing and miss pitch in baseball. Or was last year.
he was arguably the third or fourth best pitcher in the NL last year, so I'm glad we got him. He's not a guy who relies on overpowering stuff so hopefully he ages more like Tom Glavine and less like King Felix
Nats Arms Race with his analysis:
http://www.nationalsarmrace.com/?p=15547
