School counselor preparation necessitates that new counselors are trained to build a comprehensive school counseling program, which means understanding how to use data to develop, implement, and evaluate their interventions. In spite of their school counseling training, first-year school counselors may feel unprepared to use data and lack the experiential accountability skills and advocacy resources to impact systemic student outcomes. This article describes an action research training model for prospective school counselors and proposes that early and frequent exposure to data-driven decision making closes the gap to practitioner research.