I agree about the first part; a teacher should be responsible for teaching, and other administrative staff for disciplinary issues. However, this requires (naturally) that there be funding in place for the necessary staff positions. As long as school funding is tied to local property taxes, there are going to be huge variations in the amount of spending per pupil, and staffing follows suit.
As for your second point, I think it is a gross simplification to say "It's simply a matter of giving some power back to the authorities." We do need to give some power back to the authorities, but there's nothing simple about it.
As for your second point, I think it is a gross simplification to say "It's simply a matter of giving some power back to the authorities." We do need to give some power back to the authorities, but there's nothing simple about it.