I spent years in locker rooms listening to coaches guess, but the game is...

https://www.chicitysports.com/how-the-data-revolution-changed-professional-sports-forever/

I spent years in locker rooms listening to coaches guess, but the game is different now. We went from gut feelings to hard numbers. Teams used to shift by sight, but now Statcast tracks every exit velocity and spin rate to decide where fielders stand