The implementation was botched, but the idea was fine. You need good quality tests that aren't supplied by book publishers. Ideally you'd test anything, but if

The implementation was botched, but the idea was fine. You need good quality tests that aren't supplied by book publishers. Ideally you'd test anything, but if tests are unavailable for a particular subject then you have to mandate hours for that subject to keep it from disappearing. You need test security so that the teachers don't cheat. Instead of just cutting pay, which isn't helpful, you should pay per-student and adjust the number of students per teacher. It is easy to teach a very small group, but very hard to teach a large group. Shift students from bad teachers to good teachers until the quality is equalized. Unfortunately this hits a problem with standardized classroom size. Aside from that though, it would be fine to have one teacher with 9 students and another teacher with 72 students. The teacher with 75 is getting paid 8x as much as the teacher with 9, and the students all get equal quality.