Boris Chen Exclusive -

"I was tired of looking at massive, monolithic spreadsheets," Chen recalled in a rare 2018 interview. "Experts would give you a list of 200 players ranked 1 to 200. But the difference between player #12 and #13 is often statistically meaningless."

The result was not a list, but a A series of horizontal blocks, arranged from top to bottom. If two players are in the same tier, flip a coin. If they are in different tiers, start the better one without hesitation. boris chen

For nearly a decade, the answer for savvy managers has come from an unlikely source—not a former NFL coach, nor a loud TV pundit, but a quiet, unassuming data scientist named "I was tired of looking at massive, monolithic