The Polish presidency in the Council of the EU has been determined by a financial crisis. However the question could be solved only by the Member States which belong to the Eurogroup led by its own President Jean-Claude Juncker and at the highest level by the Heads of States or Governments in the framework of the European Council. In addition a form of an international agreement was chosen as an instrument to introduce new solutions in the economic and monetary policy of the EU. Such a form is not foreseen in the Treaty on the European Union, in particular Article 48 TEU. In a doctrine it is called a “Schengen modus”, then a way to reform the Union without a long process of ratification of an amending treaty by all the Member States. At the same time the Schengen modus may lead to a creation of different integration centers. All the above mentioned circumstances on the one hand have reduced a spectrum of the Polish activity and on the other hand indicated on a domination of an intergovernmental method, called by the Chancellor Angela Merkel a “Unions method”, in the European governance. In this context provisions of the Article 12.3 of the Treaty on Stability, Coordination and Governance which allows the Contracting Parties, other than those whose currency is the euro to participate in discussions of Euro Summit meetings concerning competitiveness for the Contracting Parties, the modification of the global architecture of the euro area and the fundamental rules that will apply to it in the future, as well as, when appropriate and at least once a year, in discussions on specific issues of implementation of the Treaty, may be regarded as a certain success of the Polish presidency.