> I would propose simple solutions, like a continuous improvement cycle, and educational experiments conducted at random by regular teachers, then reproduced and cross referenced to build new models. They had never considered these ideas before.

I've never met a teacher who didn't do those things; I have met many who wouldn't phrase it like that. Just because they're not using the same terminology as you doesn't mean it isn't happening.

It's very easy to look at a system from the outside and think that they're missing the obvious [1]; things become more complex the more you understand them.

[1] https://xkcd.com/793/