“…Kannapel and Clements () also verified the importance of the principal to provide relevant professional development connected to school goals. Sharing leadership, including expanding opportunities for teacher leadership within a school building (Johnson & Willis, ), and distributed leadership (Harris, ; Spillane, ) are also associated with improved teaching. Leadership has also been linked to the allocation of resources (Gamoran, Secada, & Marrett, ) and establishing the value of academic subjects (Burch & Spillane, ; Spillane, Diamond, Walker, Halverson, & Jita, ), which have also been related to instructional improvement and teaching quality.…”