Coaches coach, officials officiate, players play and fans cheer. What is so hard to know what your job is?
If a coach wanted to be on my case so much about calls then why not ask if you can send in the next play? If a coach on the sideline wants to go on and on sending me nuts will he pay for my counselling sessions or compensate me for time off work because I have a brain injury from his whinging and whining? Prob not. This is my hobby just like it is his and whether he respects me as a person I don't care but the respect to the job in stripes is 100% whether I am ever right or not. If he can't do that then he won't be on the sideline for long as he has a problem according to the rules and code of conduct of the game which he agreed to abide by.
I don't allow those lines to be blurred too much. Sure I will listen at the time but my job is to officiate a safe and fair game within the rules for the players but don't try to be over bearing in my role. The clean up of weekend happenings can then take a whole week to discuss but the game is ongoing and flowing and no time to stop and talk unless head coaches want a conference as per the rules. A quick chat in the middle between plays to soften any problems but the players are to play and the next play will be in ready or not as per the rules.
Some head coaches have realised they are not above the game, some officials have found the same, and they either conform or leave. Administrators discuss with the officials the standards of the game and it is communicated to clubs.
Set a procedure to sort of problems and use them but don't whine on the sideline or you can be further away from the sideline at the request of the official or game administrator. Do the job you volunteered for don't try and do more than what you signed up for.
Grant