This paper is developed from concern that, despite a number of developments and initiatives in physical education over recent years, there has been little change in the teaching of the subject. This has resulted in many young people being alienated from physical education and therefore physical activity. The paper focuses on how initial teacher training (ITT) contributes to this lack of change by focusing on the development of knowledge for teaching and the technical competence to deliver this. It then considers ways in which ITT could contribute to developing 'knowledgeable teachers' who are able to make change. The paper focuses on two aspects identified as relevant for trainee physical education teachers: socialization and knowledge for teaching. It recognizes that the issues are complex and that change is difficult. It also recognizes that ITT cannot change things by itself. However, it argues that by maintaining the status quo, the subject will not develop so that it is relevant to today's youngsters.