The objective of this study is to gain an understanding of how change leaders and managers affect a change implementation in a municipality. To help increase the understanding, the study examines the change project Skolplattformen which was implemented in Sweden's largest municipality Stockholms stad. This to uncover areas that possibly could improve change initiatives in the public sphere. The literature review of the study examines the concepts of public sector related change, change management and change leadership in order to help answer our research questions. This qualitative single case study is conducted primarily through 13 semi-structured interviews with five interviewees, combined with data from publicly published documents. The findings are analyzed through subcategories derived from the theoretical concepts and suggest that the scale of the change project was too complex to implement smoothly in a municipal environment. Hence, lack of communication was shown, the timeframe prolonged and strategic changes in structure was at times unexplained. In the end, Skolplattformen did not meet expectations in relation to time and cost spent.