When to over-rule?

[AK ref SE]

PublicBJ-
In pregame it should be discussed what you are going to do on a foul that may appear to be a shooting foul or not. I will say most of the time that happens in the games that I am calling with my partners......But, I will not say that I have never had a memory lapse(senior moment) that I did not communicate well with my partner.
But to answer the original question....I agree you should never overrule your partner....If he/she asks for help, tell them what you saw.
The way I deal with a coach who asked me about my partners call....I am still polishing up this part of my game management skills, But I will never say something that the coach can use to drive a wedge between my partner and I.

AK ref SE