In the United States, interscholastic sport coach development occurs at the national, regional, and local levels, through higher education institutions, coaching associations, governing bodies of sport, and coach developers. Although each coach development pathway employs similar instructional methods, delivery formats, and often seeks the same outcome (i.e., certification or degree), each is unique in how they educate interscholastic coaches. Research studies on coach development have examined how interscholastic coaches learn, what they need to know, and what they need to know how to do. Furthermore, research studies in sport coaching have examined the role of a coach developer in facilitating, mentoring, and guiding coach development activities. Therefore, guided by the literature on coach development, the role of the interscholastic sport administrator as a coach developer, and insight gleaned from an exploratory descriptive study on interscholastic sport coaches, this best practices paper offers three steps the interscholastic sport administrator can implement in practice to provide ongoing coach development.