Warren County students can get ready for pencils and books – maybe even a few teachers with dirty looks.The new school year gets under way Thursday at 7:45 a.m.Several changes are in place for the new year, including three new principals. Franklin Fisher takes the reins at Warren Academy, while Lisa Mason takes over at Dibrell and Michelle Lewis at West Elementary.This will also be the first year for a new program called Late Thursdays. Beginning Thursday, Sept. 5, school will start two hours late on the first Thursday of each month.“We’re going to try it and see how it works,” said Director of Schools Bobby Cox.