Paul Berriman, the head of a $5 billion fund management business within consultancy Willis Towers Watson, isn’t one for verbose self-promotion. On a decidedly spartan LinkedIn profile, he gives his job simply as “maestro”.

Paul Berriman, the head of a $5 billion fund management business within consultancy Willis Towers Watson, isn't one for verbose self-promotion. On a decidedly spartan LinkedIn profile, he gives his job simply as "maestro".