This article describes findings from a single-case qualitative study of a unique 2-year professional development academy for practicing assistant principals designed and implemented in partnership between school district personnel and university educational leadership faculty members. The study was conducted based on the theoretical framework of instructional leadership developed by Murphy. Academy participants reported an increase in instructional leadership skills, the development of an institutional perspective, key collaborative and networking skills, and growth in confidence in their ability to conceptualize the role and to act as successful principals. District leaders indicated that program goals to develop a cadre of assistant principals who are ready to assume instructional and managerial leadership roles as principals had been met.