Jul 01, 2010  · Pierre Tapie, 52, is the head of the business school ESSEC and chairman of the Conférence des Grandes Écoles, which represents 222 schools. While he shares the government’s objective of diversity, he said, there is a long educational track before the concours. Best Business School 2015. by Jonathan Rodkin and Francesca Levy from. Business school has been called a two-year job interview, and with good reason: For…