Friedman has been on the Wharton business school's faculty since 1984

Kathryn Austin has played a core leadership role in Pizza Hut's brand turnaround

Guthrie was appointed group HRD in 2016, with responsibility for establishing and leading HR strategy

Hall joined McDonald’s UK in June 2015, to oversee the 115,000-strong workforce

Bennett is responsible for all people aspects in the creation of the new business that is Sainsbury’s Argos

Tim Jones joined the London Stock Exchange Group in 2010 and was appointed group head of HR in 2011

Hope-Hailey is university vice president, dean of the School of Management and holds a chair in management studies

Cazemier is responsible for Inmarsat’s talent, L&D, performance management, organisation design and change – globally

Clarke joined Standard Chartered Bank in 1985 and has worked in both the UK and Hong Kong

Cheung-Judge is known as a 'scholar-educator-practitioner' in the field of organisation development

Kelan's award-winning research focuses on gender and leadership, generations in organisations, leadership, and diversity and inclusion

Wendy Hirsh is an independent researcher and consultant on a range of people management issues