Sarah Cottinghatt is the research lead at Steplab and works with schools designing and delivering effective professional development. Sarah is the author and chapter author of books on teaching and professional development as well as part of the research team for the EEF's guide to professional development.

Haili Hughes is an Associate Professor of Educational Innovation and Impact at La Trobe University in Melbourne. She was a school and trust leader for 20 years and has written ten education books.

Adam Kohlbeck is Director of Teacher Quality at Chiltern Learning Trust. He is also a doctoral student, researching teacher decision-making in complex environments and is a proud council member at the Chartered College of Teaching.