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Aaron Rodgers’ 2018 struggles mirror Zack Greinke’s experiment with FIP

Zack Greinke is one of my favorite baseball players of all time. Not everyone shares that opinion, as Greinke has some social anxiety issues and he rubs a lot of people the wrong way; but he’s a fascinating quote-machine and almost certainly one of the most cerebral, and interesting people in baseball. Greinke has always had a deep interest in scouting and Sabermetrics, and in his brief stint with the Brewers he was a fixture in their draft war room.

Perhaps my favorite thing Greinke ever did, was to conduct an experiment with his pitching over the course of a few seasons.