In this episode Alistair chats to Cheryl Giovannoni, the Chief Executive of the Girls Day School Trust. In that role she is responsible for 20,000 students and almost 4,000 members of staff across 25 girls schools around the country.

But she is no teacher – Cheryl was originally an advertising exec, rising through the ranks of that competitive world to head up three companies in the global WPP group ending up as the CEO of the giant Ogilvy & Mather.

She has competed in a man’s world and won – she now prepares the next generation of women to smash glass ceilings.