In December 2015 John retired after 12 years as Headteacher of Saffron Walden County High School (SWCHS). Since 2011 he has also been Chief Executive of Saffron Academy Trust (SAT). SWCHS is the largest secondary school in Essex, and was rated outstanding by Ofsted in its most recent inspection. John has been a National Leader of Education since 2011, and has led and co-ordinated improvement programmes to raise standards in several schools facing challenging circumstances. In 2016 John will continue to work as an Executive Consultant on behalf of the trust for Alec Hunter Academy in Braintree.