(AP) — The worst of Detroit’s schools will be pulled out of the district — which the nation’s top education official calls the “bottom of the barrel” — and placed in a new system that gives principals and staff more control over spending, hiring and improvement efforts, state officials announced Monday. The overhaul is meant to help address problems in a debt-plagued district where nearly one in five students drops out. While the Detroit Public Schools has had a state-appointed emergency financial manager for two years, the current one said there’s only so much that can be done without more radical change. “The system is broke and I can’t fix it, and you can’t fix it,” Roy Roberts said at a news conference where he and the governor announced the plan. As many as 45 schools could be moved to the new system in the fall of 2012. Principals will be in charge of hiring teachers, and they and their staffs will handle day-to-day operations.