A few months ago, Tim Herbert wasn’t planning to be the next superintendent of the Concord School District. The Concord school board is expected to confirm him at their meeting on Monday night. He said he wants to bring more project-based learning to the district and help teachers explore and refine classroom strategies. Concord Monitor: What made you decide that the superintendent job was something you wanted to do permanently? Herbert, 44, is the sole finalist to be the next superintendent of the Concord School District.