Kicking and Screaming: November 2009 Archives

nerdshirt.jpgWelcome to this week's edition of Kicking and Screaming, a Walkoff Walk introduction to Pitch F/x. Today we learn the importance of a favorable umpire.

Much is being made of the Yankees decision to pitch A.J. Burnett on three days rest. The somewhat-erratic starter was electric in Game 2 but putrid in Game 5. While starting Chad Gaudin might sound like a good idea (when you ignore his struggles to retire left-handed batters), many are suggesting that Burnett was either awful or squeezed by home plate umpire Dana DeMuth. Which was it?

Before I get to the nitty gritty, understand I one thing: I started writing this post with hopes of absolving Burnett. I'm hardly an apologist for the Girardenius, I thought starting Burnett was the right move. The Yankees, currently in the driver's seat to becoming World Series champions, don't have a fourth or a fifth starter. Burnett pitched well in lower-leveraged situations on similar rest. There was no noticeable difference in his velocity (average fastball was 94.17 on Sunday night, 93.14 in Game 2.) What happened? Let's look at his stuff first.

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So we see A.J.'s movement in both games on one graph. Nothing really stands out. His curveball (in the bottom right) moved just as much as did his fastball (upper left. Four seamer above and two-seamer below). A few flatter curves last night but neither did any damage. One thing we can certainly see is far, far more curveballs during his 7 successful innings in game 2. How come? Find out after the jump!