Becoming a better teacher by learning and implementing new ways of teaching requires time, effort, persistence, and a belief that new strategies will enhance student learning. But when educational leaders try to improve teachers and teaching from the outside, by bringing in reformers to transform how teachers engage in the core business of teaching, reforms rarely stick because the first transformation that must occur is in the perspective of initially resistant teachers. This transformation in perspective comes, in part, from teachers working to improve the quality of teachers and teaching in their own schools by developing a common vision, trust in teacher leadership, and openness to learning. Teachers who promote change can make a lasting impact.