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The NBA draft is hard. Whether teams are picking first overall or trying to unearth second-round gems, it's difficult to find high-quality players while avoiding busts.

Each team has one point person (general manager, president of basketball operations, etc.) who ultimately makes the call at each draft slot, and some of those executives are better at navigating the pitfalls than others.

To determine which of the 30 current front-office commanders in chief are best at this process, we're turning to the numbers.

The NBA's current top decision-makers have drafted 370 total players in their careers. That's just a portion of the 1,182 total selections since 1997. But all 1,182 are important to give us a true sense of expected value at each of the 60 annual slots.

Using NBA Math's total points added (TPA) model, we've broken down the careers of every draftee since '97 to determine average TPA per season by pick. The No. 1 selection should produce 33.42 TPA per season, while the final pick of the draft sits at minus-13.55 TPA, as you can see from the regression here.

The expected TPA per season was then compared to each player's actual score. Career longevity was factored in by giving proportional weight to players who exceeded or fell short of expectations for longer periods of time. Players were attributed to the teams that drafted them, or the teams that otherwise acquired them that same summer.

You won't find Travis Schlenk (Atlanta Hawks), Magic Johnson (Los Angeles Lakers), Jon Horst (Milwaukee Bucks), Jeff Weltman (Orlando Magic) or David Griffin's replacement in Cleveland in these rankings, because 2017 will be their first NBA draft on record as top decision-makers.