Focused on the role of school and district leaders, this brief is part of a series from the National Research and Development Center to Improve Education for Secondary English Learners that articulates concrete actions that teachers, leaders, parents, and policymakers can undertake to ensure that adolescent English Learners develop substantive and generative knowledge and skills in distance learning environments. This brief builds on literature on distance learning in general and on distance learning with English Learners in particular. School and district leaders operate in a multilayered, nested, ecological system in which all aspects and layers of the system interact and affect each other. Because school and district leaders' actions influence all of the other layers of the system, the brief first presents important aspects of this nested system, outlining district responsibilities and school roles that relate to what school and district leaders can do to better serve English Learners. The brief then explores how to support the development of teacher expertise in designing and implementing distance learning for English Learners.