CAROL CAMPBELL is associate professor of Leadership and Educational Change and codirector of the Knowledge Network for Applied Education Research at the Ontario Institute for Studies in Education, University of Toronto. KEN ZEICHNER is the Boeing Professor of Teacher Education at the University of Washington, Seattle. Prior to moving to the University of Washington, Zeichner was the Hoefs-Bascom Professor of Teacher Education and associate dean for Teacher Education and International Education at the University of Wisconsin, Madison. ANN LIEBERMAN is currently a senior scholar at Stanford University. She is an emeritus professor from Teachers College, Columbia University. PAMELA OSMOND-JOHNSON is an assistant professor of Educational Administration with the Faculty of Education at the University of Regina.