The New York Times has an interesting piece titled the Harlem Miracle, about startling new teaching policies that have transformed real educational outcomes in a disadvantaged part of New York.
It doesn't need to be done for everyone. The thrust of the NYT article was that it brought disadvantaged groups to the level of already advantaged groups.
The article shows that at least some teachers with the necessary co-operative attitude *were* able to be found. Finding enough of them would take time. But is this a reason not to try? Is there no need to try?
This is not about a quick fix. It's about changing attitudes and that would take time. I'm sure these things are impossible – without the necessary political will.