18 We met with a panel of experts prior to conducting our fieldwork to provide us with assurance on our methodology and highlight potential issues to pursue in our case studies. We later presented our emerging evidence to the panel of experts and invited them to comment. The methodology, findings and conclusions are, however, our own and not those of the panel. All members were unpaid. The panel included:
■ Professor John Gray - University of Cambridge;
■ Michael McIlroy - Ofsted;
■ Christine Lewis - Unison;
■ Brian Standen - 4Ps;
■ Caroline Saffel - 4Ps;
■ Hannah Jones - National College of School Leadership;
■ Roger Leighton - Headteacher of the Sydney Russell School, Dagenham;
■ Chris Whitehead - Balfour Beatty;
■ Hugh Howes - Headteacher of the Voyager School, Peterborough; and
■ Kingsley Manning, Newchurch Ltd (consultancy group).