funny start...partner not happy

[Nevadaref]

Unfortunately, your partner was doing to you exactly what he was accusing you of doing to him! He was attempting to override YOUR judgment on YOUR call.

It is too bad that this person doesn't understand that this was truly your decision to make and not his. He should have shut up, supported you, and asked you later what you saw if he disagreed.

BTW from the officials manual:
2.2.1 C2 states that the Umpire is primarily responsible for the action of the eight nonjumpers during the jump ball.

2.4.1 A2 tells us that while officials should call violations in his/her PCA "any violation observed should be called."