Mavs 108, Rockets 133

[mavsluvr]

Luka improved his defense and his on/off impact is worse than ever. Mavs are 5.5pts worse on defense when he is on the floor. In both cases it is easy to understand why. They are replaced by all defense/no offense guys like Iwundu, Green and Johnson. They also played a lot of minutes without the guys that are missing.

Agree, this stat doesn't tell you by itself whether a guy is a defensive liability. It is really just about who is in when the player is off the floor. Teams generally put players who are better defenders (although, in many cases, much worse players) to back up Luka/THJ. If they put in a bunch of one-way offensive players, instead of one-way defensive players, than Luka and Tim would have likely have positive on-off stats. Yet, either way, they would have had exactly the same impact on the floor.