Mario Draghi, former president of the European Central Bank, has every chance of shaping Europe as the new Italian prime minister. But he will depend on an electoral timetable outside his control and on a range of temporarily tamed political parties that could later turn against him. In the past 30 years, Draghi has demonstrated proficiency as an expert official and central banker. Draghi must show he can deploy that same mastery on the front line of political power.
