This paper describes the role of Center for Collaborative Education (CCE) in supporting a unique urban public school network, the Boston Pilot Schools Network. By informing the educational community of its strategies, activities, and challenges, CCE hopes to contribute to the understanding of how change promoted from outside the school can affect teacher and student learning. The Center for Collaborative Education is a non-profit organization whose mission is to improve student learning in K-12 public schools and districts by promoting models of systemic reform.