The aim of this study was to identify the key factors for the development of better and more effective leadership roles of leadership and decision-making process in kindergartens and contribute to a better understanding of the relevant dimensions of the professional role of leadership in the process of achieving greater efficiency of development of kindergartens. By using the quantitative research approach was fundamental (1) to determine the perception of realization of managerial roles kindergarten principals and (2) whether there is a connection between flexibility and authority with certain socio-demographic characteristics of respondents. The study included 66 city/ municipal kindergarten principals in the Republic of Croatia. It adopts the modified questionnaire (Blažević, I., 2014) on a sample of principals and teachers of primary schools Split-Dalmatia County. It was found that the implementation of leadership roles principals at a satisfactory level and that there is a correlation with the degree of flexibility of education while for other socio-demographic characteristics have not been established connections with the flexibility and authority. Based on theoretical assumptions and the results of research are suggested guidelines to be taken for the purpose of improving or developing better and more effective leadership principal roles.