Becoming a school leader is not “going to the dark side,” says Peter DeWitt, author of ‘Collaborative Leadership: 6 Influences That Matter Most’ and Education Week opinion blogger. It’s about working collaboratively. In this presentation and Q&A at Education Week’s Leaders To Learn From event in Washington, DeWitt describes how school leaders can evaluate their impact by building collective efficacy among staff. Note: Due to technical issues, there is roughly 25 seconds of this video with no audio (2:09-2:34). DeWitt’s speech followed a keynote presentation from researcher John Hattie, which you can find here: https://www.youtube.com/watch?v=UJyEXZuIgMQ