I spent eleven years in the press box listening to coaches gut-check their way...

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

I spent eleven years in the press box listening to coaches gut-check their way through losses. Back then, "the eye test" was king. Now, it’s all about the numbers. We went from 23% of teams using advanced metrics in 2000 to 97% today