This paper discribes the analysis of data in the Management Implications of Team Teaching Project (MITT). It touches on the interviews conducted with teachers and principals, presents the breadth of information obtained in the questionnaire, and explains how the data were aggregated and how issues were grouped. Information collected in the interview focused on how decisions were made in schools in a number of areas. The task was to develop indices by which decision-making in each school could be characterized. The researchers formulated nine types of control structures on the basis of the interface between the "input population" (who made the decision) and the "output population" (who were affected by the decision). The evidence gathered was combined into groupings to reflect components of the instructional program about which decisions were made. Profiles were clustered through multidimensional scaling, internal analysis was conducted resulting in recombination of the clusters, and a complex external analysis was conducted. (JM)