In this article the authors explore the need for early childhood practitioners and scholars to engage in joint problem solving to create and support early childhood education and care (ECEC) professional development systems in which all constituents benefit. Primary constituent groups and principal decision-making bodies are defined and analyzed, and the interrelated influences within professional development systems are considered. At the heart of the discussion is how decisions made by all constituent groups are interrelated and affect all parts of the system. For instance, decisions made about professional qualifications have an impact upon pre- and in-service ECEC professionals, current ECEC professionals, children and their families, and individuals within ECEC businesses and communities. Although the discussion in this article is about these issues as they are played out within the USA, the authors believe that the implications raised may be usefully considered by ECEC professionals and those engaged in professional development in other cultures and contexts. (Contains 1 figure.)