Does he stay or does he go?

[UmpireBob]

Players and coaches are not allowed to question judgement calls. HTBT, in order to really get a feel for the tone. Plus, it's really your call as to whether you ignore this coach or not. I would probably allow the first pop-off, and after the second, issue a warning as I'm "discussing the line-up" with him, or anything else I can come up with to enable a discussion with him while allowing him to save face. If it's an assistance coach, then I'm having the convo with the head coach, and holding him responsible.

It is hard to say that there is a hard and fast limit to what I might allow or disallow. Like I mentioned before, really had to be there.

I don't mind a coach popping off once due to frustration, or just to communicate his disapproval of the call. Past that, "I've heard you coach, and I understand what you're saying, but we're moving on now." If he continues to pop off, he's gone.

Bob