Sally Gillespie was promoted after her MBAANDREW FOX

Case study: Changing trains
Sally Gillespie took the train home to Birmingham to study for an MBA at Aston Business School. Having worked in public relations in London, Gillespie, 34, was given the chance by her employer, Chiltern Railways, to increase her knowledge of business. “I hadn’t had any formal business education apart from working since I graduated,” said Gillespie, who read ancient history at Bristol University.

And the workload at Aston was full on. “When you have been out of university for years it takes some adjustment,” Gillespie said. “If you have made that decision to do it, you expect it to be tough. It’s not just a matter of pay the money and you get an MBA, it is a hard slog.”

She returned…