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What Statistics Can Tell Us About NBA Coaches
- A study was conducted to analyze the hiring patterns and tenures of NBA coaches, aiming to determine the impact of coaching background on success.
- Data collected from 1990 to 2021 revealed that NBA teams often re-hire coaches with prior head coaching experience.
- An emphasis on internal candidates was observed, with 13.6% of hires being internal, including successful coaches like Popovich and Spoelstra.
- The median tenure for NBA coaches is 2.5 seasons, with only 10% lasting more than 5 seasons.
- A logistic regression analysis showed no significant difference in success rates based on coaching backgrounds.
- Despite indications that previous head coaches tend to last longer, statistical tests did not confirm a bias towards hiring them.
- Internal hires were found to be 77% less likely to be successful compared to external hires.
- The limited sample size of successful coaches might have influenced the lack of statistical significance in the analysis.
- Overall, the analysis debunks the notion that internal hires or previous head coaching experience guarantee coaching success in the NBA.
- Short coaching tenures and a preference for experienced head coaches were prominent findings in the study.
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