There is growing awareness among educators and policymakers that effective school leaders are critical to school success and student achievement. Many studies illustrate the important benefits of effective school leadership for teachers, pointing to the significant influence on teacher satisfaction, development, and retention. This case study highlights the efforts of Gwinnett County Public Schools (GCPS), located in the metro Atlanta area of Georgia, to create an intentionally systemic school leadership strategy to improve its schools and raise student achievement. What makes the Gwinnett school leadership case particularly interesting is the fact that the district has taken a wholly comprehensive and multi-pronged approach to school leadership that includes: (1) making school leadership a strategic priority; (2) creating the conditions that enable school leaders to be successful in their roles by driving school and student success; and (3) developing a robust leadership pipeline. These individual building blocks are components of a comprehensive leadership development strategy developed by GCPS. Their integration as part of a comprehensive district strategy and vision for change is a unique and powerful example of a district investing in effective school leadership to improve student achievement. This case study is intended to illustrate how essential school leadership is as a driver of student achievement, and to share GCPS' policies and practices that lead to highly effective school leadership. The report also includes the appendices: (1) Interviewees; (2) App Application and Sample Instrument; (3) Guide to University Partner Programs Sample Page; (4) Leadership Development Seminar/Summer Leadership Conference List of Topics; and (5) Sample Principal Evaluations.