Linda L. Griffin, PhD, is an associate professor at the University of Massachusetts. Her primary research interest for the past 12 years has been in TGfU. Griffin, who coauthored Teaching Sport Concepts and Skills: A Tactical Games Approach, has taught and coached for 14 years in K-12 settings. She has conducted numerous teacher development workshops on using the TGfU model.
A member of the American Alliance of Health, Physical Education, Recreation and Dance, Griffin served on the planning committee for the first TGfU conference in 2001. She has served as chair for the Curriculum and Instruction Academy and is currently president-elect for the Research Consortium.
Joy Butler, EdD, is an associate professor at Plymouth State University in Plymouth, New Hampshire. She directed the first TGfU World Conference and is chair of the TGfU international task force. She taught high school physical education in England for 10 years and has given numerous workshops on TGfU, as well as presenting at state, regional, national, and international conferences on the topic. She was the keynote speaker at the TGfU conference in Melbourne in 2003.