Principals in the information age need to be information driven, committed to shared leadership and relentless about continuous improvement. They must reshape the processes, norms, and behaviors of teaching and learning around aggregating and interpreting shared information. In this article, the authors discuss the role of a principal in shaping the focus of a school and employing data-based decision-making strategies in school. The authors identified two challenges in data-based decision-making which school principals are charged with: (1) breaking through entrenched, loosely coupled systems characterized by work isolation, uncertain technologies, and top-down decisions; and (2) forging new dynamic and flexible systems that intensively engage new precision technologies, data-informed processes, and collaborative decisions. Implications for district support and response in data-based decision-making processes are discussed.