Randolph, Mass., has schools rated among the worst in the state. Amid a financial crisis in recent years, 68 teachers have been laid off, two elementary schools have closed, and about half the classes at the high school have been cut. Elementary school have no librarians. Most of the school buses are gone, as are freshmen and junior varsity sports. State education officials have told the district it has 90 days to come up with a plan to turn the schools around or risk a state takeover. But the effort to devise a plan has all but fallen apart, as town and school officials bicker about how to proceed.