One key thing coach's evaluations do tell us

[Texas Aggie]

I can't see how that is going to help the wing on the opposite side who will never get to use those skills with the coach anyway.

That wasn't my point. What I was saying was that it appears, rightly or wrongly, that coaches view officials they can't communicate with as lower performing than those they can communicate with (or who are just in earshot of them). I'm not suggesting we need to figure out ways to help a line judge communicate better with a visiting team's coach, but rather, to use this data as an indication that if we improve our communications skills with coaches in general, there's a good chance our games will go smoother.

If anyone thinks this is meaningless, so be it. I can't quite figure out why you posted. I think its generally agreed that coach's evaluations aren't a great source of information to foster improvement of officials, especially against things like this forum, camps, individual evaulations, etc. But I do think that if you can take the aggregate trends and use that data to explain behavior, you can come up with useful information.