How do principal learning opportunities need to change, and who should be leading this change effort? The school district central office plays a vital role in principal learning by providing supervision and support for principals. Just as teachers need ongoing learning opportunities and support from their principals to provide high-quality instruction to all learners, principals need ongoing support to build their capacity for instructional leadership. Based on current research and the authors' experience as scholars and practitioners, they offer three recommendations for central offices--and principal supervisors specifically--to address these needs.