President of the European Council extended his influence into financial policy, the most important area left to the rotating Council presidency, with the rotating presidency seeing a greater decrease in power than previously planned. Many of the changes introduced with the Lisbon Treaty need concretion through practical implementation by the current actors. The Spanish presidency unsuccessfully tried to challenge the European Council president's prominent post during the first rotating presidency of 2010, while the second half of the year saw a Belgian rotating presidency marked by a weakened caretaker government which did not challenge Herman van Rompuy, himself a Belgian politician. The Belgian rotating presidency
President of the European Council of the treaty. Some clarifications saw Van Rompuy as the "strategist" and Barroso as a head of government. In terms of economic policy, Van Rompuy saw the European Council as dealing with overall strategy and the Commission as dealing with the implementation. Despite weekly breakfasts together there was a certain extent of rivalry between the two yet-defined posts. Although the President of the European Council may not hold a national office, such as a Prime Minister of a member state, there is no such restraint on European offices. For example, the President may be an MEP, or more significantly the