Despite widespread recognition that school systems need to do profoundly better, those seeking improvement have been persistently frustrated by the mediocre results of popular reforms. School and system leaders, policy-makers, and funders lack clear guidance as to the steps necessary to dramatically and effectively transform an educational ecosystem. Would-be reformers need a playbook outlining clear strategies for rethinking outdated approaches to school and system governance, resource allocation, quality control, talent management, and data use for the 21st century. In this volume, a team...