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 research team for the EEF's guide to professional development.

Haili Hughes is a professor of instructional coaching and Director of Professional Development at a multi-academy trust. She is the author of eight books in the education space.

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.