Diophantos

Well, it uses Dean Oliver's DRtg, which is a stat I've never really seen explained. It always seems like it depends really heavily on a player's teammates and the system he plays in.

e.g. in 2003-04, Mike James played 55 games for Boston with a DRtg of 106, 3 points worse than the league average. Then he was traded to Detroit and his DRtg dropped 10 points to 96 (7 better than the league average) for the next 26 games. Don't know if Mike James really improved his defense that much, or he just got put on a better defensive team.

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"However," replied the universe,
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