One of the biggest improvements that could be made to the public system at the state level would be to remove the requirement for an education degree to teach at the K12 level. This would eliminate the need for that degree making the Colleges of Education redundant.
Make the requirement a 1-year teaching apprenticeship at a public school. Also push hiring down to the individual school level done by a committee of parents, teachers & head school administrator (principal).
No. How about no public education at all?