This chapter illustrates two leadership theories – Heifetz’ (1994) theory of adaptive change, and Bridges and Mitchell’s (2000) theory of leading in transition – to illustrate their applicability to leading experienced staff through change. Using adult learning and followership theories as a conceptual framework, this case study illustrates an application of Heifetz’ (1994) and Bridges and Mitchell’s (2000) theories. Heifetz’ (1994) and Bridges and Mitchell’s (2004) leadership theories offer library leaders a framework for understanding, managing, and leading change efforts. The results in a case study approach are naturally subjective and may have limited generalizability to other library contexts. This study illustrates how library leaders may use established leadership theory to support experienced staff and guide change efforts. In using the adult learning and followership theory framework, the writer advocates for a humane approach to managing change with experienced staff. This chapter is original in its synthesis of three areas of theory in service of understanding leadership and change: adult learning, followership, and leadership. It is the first study to use Heifetz (1994) and Bridges and Mitchell (2000) in the context of library leadership.