The most recent CPD video from the ACO was on conflict management, something that has only really come up a couple of times in my games, one of which came about because of an error on my part, not dealing with poor behaviour before it got too much. This area of umpiring would have, I think, been covered in the training course that I was due to go on at the end of March which was cancelled.
My approach to the whole game is that most of the time I am a spectator, and as much as possible should be left up to the players. That includes dismissals – if someone is out then I will only signal and give them out if the batsman doesn’t walk. That is, my default style is in the terminology of that video “avoiding”. In the error above, I avoided for too long. However, on the one second occasion for conflict in one of my games (I gave someone out caught when he was adamant that he wasn’t, and he argued) I went to “collaborating” by asking my colleague at square leg for his opinion. In the end my colleague (and it should be noted that he was a batsman temporarily standing at square leg) hadn’t had a clear enough view to say either way. If he had been sure I was wrong I would have changed the decision, but the dispute was settled with everyone being reasonably content by me telling the players to hold on while I consulted him, and then confirming my decision.
As a cricket umpire as opposed to an official in a more fast-moving sport I’m lucky that I will almost always have the time for collaboration with my umpiring colleague, but also I have the time to explain decisions to players. This means that I can be both assertive and co-operative, which I think is the ideal.