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Thanks for the update to your summer's theory. Really enjoy reading it. Looks like very strong evidence. As a former academic, reading this like a journal article, I have two questions.

1) The lead sentence of the second big section: "Let’s look at the high majors who have *opted* to build their rosters around almost entirely newcomers." (emp mine) I would bet Kentucky for example would disagree with the term opted; their players largely left to follow Cal. But that possible exception makes me wonder how much continuity is an explicit decision? Removing Kentucky from this analysis because continuity wasn't even an option seems like cherry-picking, but makes the evidence stronger.

2) On the measurement side, minutes is the perfect indicator of continuity, strictly defined. But when I hear pundits talk about it, they mostly mean 'did the team retain their good players?' What if you ran this analysis using your BPM statistic? Did teams returning players who accounted for over 50% of their skill also show better performance? (Obviously calling it the Zach Eddy corollary.) Seems your modeling strategy might be perfectly set up for that?

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