Those who have been in education for some time and have paid attention know Robert Marzano is a rock star! His expertise runs deep in many areas, and in this Leader Chat, we were thrilled to pick his brain on leading and implementing proficiency-based systems in schools and districts. We are so lucky to have such an esteemed lineup of guests, and Dr. Marzano only adds to the esteem of our show. As an educational leader, if you are not impressed with this, then maybe you are impossible to impress. (That's a joke). Enjoy!