NBA regular season team and player data since 1997 was gathered from Basketball-Reference.com and used to create the data sets for this study. 370 teams were observed. The 1997-1998 season was chosen as the initial season in the data set as it was when the three-point line was moved back to 23’9”, where it has since remained. Team and player stats were adjusted for team pace and minutes played.
The charts on the right side of the poster display the following results: A wider distribution of three-point attempts predicts an increase of as much as 4 points per 100 possessions. A wider distribution of free throw attempted predicts an increase of as much as 3 points per 100 possessions. A wider distribution of assists predicts an increase of as much as 2 points per 100 possessions. A more even distribution of turnovers predicts an increase of as much as 2 points per 100 possessions. A more even distribution of offensive rebounds predicts an increase of as much as 4 points per 100 possessions. The distribution of field goal attempts was not significant in this analysis.
There are some significant differences in points scored between the widest and most even distribution of various statistical categories. With the exception of offensive rebounds and turnovers, a wider distribution proved more beneficial, indicating that teams built with more defined roles in shooting and distributing are more efficient. This is just the beginning of this analysis and the implication of the results of analyzing how roles are distributed deserves more thought, as Kevin Pelton suggested in his recap of the NCSSORS conference.