The Teacher Leaders Corps had many strengths and was fairly successful in reaching its implementation and short-term goals. Central training quality was considered strong and attendance rates were high (especially in Years 1 and 2). Of those who began the TLC work in 2013-14, approximately 60% participated all three years. At the school level, about half of the intended dissemination events took place. Professional learning sessions emphasized use of various digital resources. Discovery Education resources were available to all schools and provided evidence that online resources were utilized by teachers and students. DE utilization was higher in Year 1 than in Year 2 or 3; and teachers utilized DE more than students. Decreased use of DE after Year 1 could reflect less interest or an increase in digital resources available to schools. TLC members utilized technology appropriately and in a variety of ways based on classroom observations. The school team model utilized in TLC provided a better opportunity for sustaining the effort than training sessions with no follow-up. Ways to further increase the likelihood of implementation, impact, and sustainability in schools include putting structures in place at the central and school level to facilitate and monitor teacher implementation and to provide more coaching for teachers.