NBA True Winning Percentage

[mickeyg13]

I know it's been studied in baseball that looking at run differential can be a more accurate predictor of future winning percentage than even current winning percentage (some form of Pythagorean wins). Has anyone studied anything similar in the NBA? This might have an obvious answer, but I'm not as much of an NBA fan as I am MLB, but the NBA seems to be the only other major sport where sample size issues wouldn't trivialize findings.