I spent eleven years in press boxes listening to coaches call decisions "gut...

https://marcossuperop-ed.almoheet-travel.com/the-invisible-tape-measure-how-nfl-stadiums-actually-track-everything

I spent eleven years in press boxes listening to coaches call decisions "gut feelings." Turns out, the gut was just bad math. We went from 23% of teams using advanced metrics in 2000 to 97% today