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Morning Mound Visit: sabermetrics news - 5/23/19

Shane Bieber’s improvements; home runs’ effects on pitchers; the Braves and vertical movement

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MLB: Baltimore Orioles at Cleveland Indians Ken Blaze-USA TODAY Sports

FanGraphs | Craig Edwards: Shane Bieber was already considered very good, but now with a new change and better command on top of already pretty excellent command, he has ratcheted up a notch to the tune of a 3.22 ERA to start the season.

Baseball Prospectus | Zach Crizer ($): One thing that is really screwing up the predictability of pitcher stats is the advent of the prolific home run. While home runs used to be a mild indicator of success and failure, now pitchers live and die by it, their ERA fluctuating wildly while their expected stats tell a different story. And because there is little predictive power year-to-year, results are more volatile than ever.

The Athletic | Eno Sarris ($): The Braves are pitching well as a team, and their best skill seems to be having pitches with very effective vertical movement; they have the most pitches of any team with high vertical movement. They have utilized that to great effect with the likes of Luke Jackson and Jacob Webb, and soon to be many others.