Kurtenbach: Jonathan Kuminga still doesn’t know the first rule of the NBA. He’ll stay on the bench until he learns it

It’s the first rule of the NBA: Talent gets you into the league. Knowing your role keeps you in it.

Jonathan Kuminga was given a role when he returned from his months-long ankle injury: Use his prodigious athleticism to become an elite hustle player. Rebound like it’s the only way you’ll touch the ball, defend with the intensity of a hyena, and run the floor in both directions with unrelenting intent.

But Kuminga wasn’t interested in doing that.

He’d rebound for a while, then fade away.