Great leaders in schools are not unlike the great leaders of industry, small businesses and non-profits. There have been countless studies and books written about the most successful leadership tactics and tendencies, all of which reach similar conclusions about the best practices in leading and managing that we all know and have studied for decades. Similar studies exist that outline the best practices for teachers, the intricacies of great pedagogy that master teachers drop into their lessons in a seamless array of thises and thats that inspire children to grow at impressive rates. Those instructional best practices for teachers have made their way onto countless checklists and frameworks that principals use to monitor teacher growth. Still, here’s the thing. If we already know what makes…