The guy is a one-in-a-million pitcher. He can dominate as a starter and a closer, and, depending on what the Braves need, he'll be there for either. I just hope he's never asked to do both at the same time.
Here's an excellent article by Todd Jones, the closer for the Tigers, on just how awesome John Smoltz is. I have enjoyed reading Todd's columns in the print version of Sporting News for a few years now, and I just discovered the full text online! Yay, Todd! (Hope you and your amazing mustache can be a Brave one day.)