I was never an athletic person, so never got involved in sports beyond some grade school volleyball games. Yet what you say make sense. I agree, coaches should be required to attend training sessions, probably every year. Not everyone who ends up coaching understands all that it entails. They may be doing their best, and maybe nobody else wants the job so that's how they got it, but training could make a huge difference for the coach as well as for the team. And I applaud you for putting your best librarian stare to such good use.
LOL! You know, I generally don't get involved in things, as humans tend to be humans, and a lot of them like drama, but even easy going people reach the apex of their tolerance. Things have been going better on the player treatment front since then for sure.
Honestly, most days I would like to just do what my Pickles is doing right now, sitting on a patio table, soaking in the sun, and staring at unseen to me motes of vastly interesting somethings. Hope all is well:)