York, Penn., desperate to turn around major holes in its budget and major shortfalls in academic achievement, is considering the drastic step of turning every school in the city into a charter school run by one of two for-profit companies.To do so, however, it will have to overcome major resistance from both parents and organized labor.York, which already has several small charters in operation, is considering hiring one of two charter school companies, Mosaica Education or Charter Schools USA, to take over all of the city’s remaining schools starting next year.The measure is primarily driven by York’s failing finances and...