James Rudd is a senior lecturer in Physical Education at Liverpool John Moores University, UK; his research interests are in the areas of pedagogy, child development and motor learning. Ian Renshaw is an associate professor of Human Movement and Sports Science at Queensland University of Technology, Autralia. Geert J.P. Savelsbergh is head of the Motor Learning & Performance section of the Amsterdam Movement Sciences & Institute for Brain and Behaviour at the Vrije Universteit, Netherlands. Jia Yi Chow is currently the Associate Dean, Programme and Student Development, with the Office of Teacher Education (OTE), National Institute of Education (NIE), Nanyang Technological University (NTU), Singapore. Will Roberts is a senior lecturer in Sport and Exercise Science, and Academic Course Lead for the MSci/BSc in Sport Coaching Science at the University of Gloucestershire, UK. Daniel Newcombe is a senior lecturer on the Sport, Coaching & PE degree at Oxford Brookes University, UK. Keith Davids is professor of Motor Learning in the Sport & Human Performance research group at Sheffield Hallam University, UK (2014 onwards), investigating skill acquisition, expertise and talent development in sport.