Sir Martin Sorrell – CEO of global advertising agency WPP – spoke at Hult’s London campus to a group of executives and students about the BRIC countries and the challenges faced in these markets. Amongst them, the challenge of nurturing and maintaining such a plethora of talent.

Other challenges? How do you ensure 158,000 employees work together and not in silos? This horizontality is one of the four pillars of WPP’s global strategy, alongside new markets and new media; but also consumer insight: asking what are customers doing and how are their values changing? Moreover, how do you battle corruption in the Brazilian, Russian, Indian, and Chinese markets?

As CEO of a $16BN company, Sir Martin moves fast, knows his business inside out and certainly lives by his motto: persistence and speed.