Well, that was anticlimactic... I was expecting an article on teachers unions being ruled illegal and the significant minority of totally incompetent teachers the union enabled for all these years being fired.....
At school my favourite and most effective teachers were those that my older sisters had disliked enough to warn me about. And, with my kids, it repeats; one will like and learn from a teacher that the other kid struggles with etc. So perhaps it’s about teachers being good and effective for one child but not for another, and few are objectively bad for everyone?
They sit and do nothing, in a barren and unpleasant environment, and the school system hopes they'll quit.