Characteristics that contribute to successful redesign and launch of principal preparation programs may be understood collectively as the capacity of those programs. A model of capacity for redesign of principal preparation programs should strike a balance between the technical and professional aspects of teaching and leadership and the cultural and relational aspects of organizations. We surveyed a national sample of program directors and interviewed a purposive sample of those in the midst of redesigning their programs to arrive at a framework of the tools and raw materials programs need to meet the new demands of principal preparation.