Mike Wallace is a Professor of Public Management at Cardiff Business School, Cardiff University. From 2009 to 2012 he was the Economic and Social Research Council’s Strategic Adviser for Researcher Development. His research on managing change in the public services is reported in many books and academic journals. He is co-author, with Eric Hoyle, of the book Educational Leadership: Ambiguity, Professionals, and Managerialism (Sage, 2005), lead editor, with