In episode 3, Corwin and I run through Quarterback stats by going through Joe Montana's Pro-Football-Reference page (attached at the bottom). We also employ the QB Rating formula which can be found below the image of Montana's stats. You can use this to follow along as we go through each stat and justify why we think it is either useful or irrelevant (or somewhere in between), or follow the link and play around with it yourself!
https://www.pro-football-reference.com/players/M/MontJo01.htm
https://en.wikipedia.org/wiki/Passer_rating