In a second example, Supovitz (2002) reported survey data comparing team-based and non-teambased teachers’ perceptions of school culture on 33 items that were grouped into five key indicators of school culture. He found ‘‘strong and persistent evidence’’ that team-based teachers ‘‘felt more involved in a variety of school-related decisions’’ (p. 1604). He concluded that giving teachers the power to be decision makers in their own learning process was essential to improving students’ learning. Finally, case study data from Bolam et al. (2005) demonstrated that the mobilization of leadership within strong PLCs enabled faculties and administrators to develop innovative strategies for use of financial and personnel resources to increase student learning and the strength of the professional learning context.