Teachers would be induced to teach or the school closes ... period
Teachers would be induced to teach if they could be fired for not doing their job. Your plan is just going to have teachers move to affluent school districts. Affluent school districts don’t have better teachers. They have better students.
Kids are not all equal. Some prosper regardless of education. Between their smarts, their personalities and their parents, many of these kids do well and schools are just lucky to have them.
Schools don’t make the kids. The kids make the schools. Send a kid to a school where all the other kids parents went to college. And you will see that the other kids expect to go to college. Then your kid will expect to go to college. If all the other kids go to good colleges then your kid will expect to go to a good college.
Some school systems do a good job at supporting the top kids. Some do a good job at supporting the middle kids. And some do a good job at supporting the bottom kids. And of course there are the schools that don’t support anyone. But the best indicator of a kids future are his friends and parents, not his school. Schools know this. They won’t say it directly. They like to point out that their kids achieved great things. But that is just marketing for the school system rather than fact.