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, reports the Associated Press. 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…