I love the solution you propose. There are certainly other ways in which the whole school system can improve in this and other directions. The most-direct (and sensible!) reform I've come across is: distribute education funding equally, without tying school income to local taxes paid. You end up with richer schools receiving a lot of funding, while the poorer neighborhoods (already disadvantaged as it is) receiving unacceptably low funding - exacerbating the inequities currently engrained in the current system.