https://fivethirtyeight.com/features...0jYOrvs16M0wVE
For years I've been wishing for automated ball and strike calls to take over for umpires. I'm not a believer that the charm of a human making a crucial call is better than the certainty of getting it right.
But one unintended consequence might be the devaluation of catchers, no longer needing to frame pitches.
538 took a pretty good look at this.
"Catchers and MLB teams might soon have to get very comfortable with change. Catcher is the one position on the field for which teams have still routinely traded offense for defense: It’s the rare position that has gained in defensive importance this century. But no other position is threatened with having so much defensive value stripped away. An automated strike zone, which MLB has begun to experiment with, would eliminate the value of receiving, and advances in training are already shrinking the gulf in defensive skill at the position.
Yankees catching instructor Tanner Swanson told FiveThirtyEight that an automated zone would completely change the position: “It would be almost a second DH.”