If at first you don't succeed, get a bigger hammer. Alan Lewi
You have got to boss scrums. The players need to know what you want them to adhere to. Then it is up to them to decide whether they are adhering to that or not.
Coaches will do what they can but it doesn't necessarily bother me. You are an international referee for a reason. If things like that are going to ruffle your feathers, don't bother doing the job.
The scrum and the tackle are the two really contentious areas of the game. If you get those two aspects right, most rugby matches will work in your favour.
I'm out there most every night, ... My work schedule, of course, is pretty rigid, but every moment I'm not working, I try to find time to be out there talking with constituents, and I feel very positive.