Good article on
Devin Williams here.
But one quibble. It talks about the side movement on his changeup.
"For Williams, it all starts with The Airbender. Williams grips it like a changeup and its 84-mph average velocity plays off his fastball like a changeup. But it's a changeup with an exceptionally high spin rate that breaks to his arm side -- opposite from the typical changeup -- making it resemble a screwball or a left-hander's sweeping slider. It is without precedent."
Uh...... changeups almost always break to the pitcher's arm side. Pedro's darted down and to the right. Glavine's darted down and to the left. One reason why pitchers throw changeups a lot to opposite-handed hitters (LHP to RHB, and RHP to LHB) is because the pitch moves away from the hitter, and towards the pitcher's arm side.
So WTF is this article talking about?
Watch Pedro explain how he threw a changeup and how he teaches it.
View: https://www.youtube.com/watch?v=ucZk9xJ0-aM
At the 1:00 mark he talks about how the pitch dives, and watch his hand show how it dives. It's to his arm side. He even describes how to pronate the wrist a little to get more of that sideways (to the arm side) motion.
Then watch him in the 1999 ASG.
View: https://www.youtube.com/watch?v=RN1nUnCr1QM
First pitch, changeup. It starts off the outside part of the plate and moves towards the hitter (Pedro's arm side). Same thing on the pitch to Bagwell, but this one starts off more in the middle of the plate and dives in under his hands.
Now watch Glavine, a lefty. Harder to tell the movement because of the camera angle, but at 0:30 you see his changeup. Moves down and away from righties, or towards Glavine's arm side.
View: https://www.youtube.com/watch?v=AlSSRXK2qDE
So what in the world is this article saying? I get that Williams has a great changeup. But the idea that it's some unique changeup because it moves to his arm side is just ridiculous. That's how it almost always works with a good changeup, and lots of guys throughout baseball history have had great changeups.