After years of careful preparation and months of campaigning, Emmanuel Macron and his allies are about to take control of the euro area’s second-biggest economy. Typically associates from the elite French schools where the new president studied, or his time in government under outgoing President Francois Hollande, Team Macron were first dismissed as fantasists and then faced attacks from all sides. Now they are going to be taking decisions that will affect hundreds of billions of dollars in global trade from energy to finance and defense.