What?

ORTG/DRTG is 100x better than differential when discussing player impact. Especially at the Center position.

You are dealing with a larger sample size that includes all minutes that player is and isn't on the floor.

You can actually improve your differential by not playing defense. There are two videos on the front page of KAT playing absoultely no defense and giving free layups. Neither one of those shots would negatively impact his differential because he wasn't close enough to be considered guarding them. But it would affect his Net Rating because they scored while he was in the game. And it should affect his rating because both plays were his fault.

If you literally let everyone shoot outside the paint but just contested layups you'd have a great diff% but a shitty net rating and defensive rating.