This document summarizes the changing role of liaison librarians from traditional roles focused on collections management and reference to more engaged roles centered around instruction, research support, and scholarly communication. It outlines how the University of North Carolina at Greensboro reorganized its liaison model, establishing subject teams and functional teams to refocus liaisons' work on outreach, instruction, and faculty support. The reorganization process and initial accomplishments are described along with ongoing challenges and next steps to further transition and define the new liaison roles.