The study investigate the challenges of recruiting managers for public library operations and whether there are any long-term strategies for appointing library managers. The aim of the study is based on examining the public libraries' supply of skills and strategies for employees who want to develop into leaders and future managers within the public libraries' operations. The theory used in the study is based on systems theory and the three phases of the competence supply process. The method for collecting empirical material has been done through semi-structured interviews with six library managers at different public libraries in southern parts of Sweden. The findings in the study are that libraries use strategies such as external and internal recruitment to appoint managers. It also appears that various conditions such as access to education, the manager's leadership and the organizational structure can create opportunities for employees to develop towards leadership as a path to sustainable management.