John Charman: Courting controversy

John Charman likes nothing more than to stir up the thick, placid pool that is the Lloyd s insurance market. But last week he exceeded his own high expectations. The market is now swirling with the news that Mr Charman, chairman and chief executive of Ace Global Markets, has left the Ace group only a month after he had been chosen to head up Ace International, one of the groups two main operating divisions.