The EU as a system and can one policy fit all?

Has EU regional policy helped make Portugal, Spain, Ireland, Greece, South Italy more competitive inside the EU Single Market?

But then how can most be competitive in the Single Market with a Euro worth 1.3, 1.4, 1.5 USD? ECB policy undermined EU Regional Policy!

Time for EU policy makers to view the EU27 as a single "system" but with unique components.

EU policies can fit all, especially when coordinated and their combined effect considered or planned. After all, the College of Commissioners approved policy proposals of the Commission to the Council of the EU and the European Parliament as a body, ie the College can make sure that the range of policies are compatible and having a combined effect.