I've always been much harder on managers than players, if you get them under control then more often than not player behaviour will follow suit.
A very notorious manager at step 3 and 4 in the South East area told me that he knew he had to behave if I was refereeing his teams. I don't think I ever took disciplinary action against him but the threat remained there as I'd warned him over the course of many games. Don't think he liked being told what he could and couldn't do, but we built up a mutual understanding that I'd be fine with him as long as he didn't overstep the mark. As bizarre as it sounds it got to the point that if he started to get out of hand I could just shout his name and he would reign it in.
It just can't be ignored, that will just embolden them to keep doing it and escalate.
A very notorious manager at step 3 and 4 in the South East area told me that he knew he had to behave if I was refereeing his teams. I don't think I ever took disciplinary action against him but the threat remained there as I'd warned him over the course of many games. Don't think he liked being told what he could and couldn't do, but we built up a mutual understanding that I'd be fine with him as long as he didn't overstep the mark. As bizarre as it sounds it got to the point that if he started to get out of hand I could just shout his name and he would reign it in.
It just can't be ignored, that will just embolden them to keep doing it and escalate.