Is There a Problem With Arm Speed?

In practice, not all pitchers are able to translate their arm speed into ball speed. Two guys with the exact same arm speeds might throw very different fast balls. If someone's arm speed is extremely high and the ball comes out at like a lower predicted velocity basedonk a regression algaritm, then we know that ther siment ficiencies there that we should be able to easily clean up. Mat boyd was an unknown minor league pitcher coming off a terrible season. He had a below average fast ball, around 89 miles an hour. The way he was going, he was about to be spending a lot more time with his mom and dad. I realized that i needed to