Structural reform - and European integration in general - may become more of a "bottom-up" process that is driven by the citizens of Europe, as opposed to the "top-down" process it has been so far and which is driven by experts and politicians.
5)  Public involvement  This leads me to the fifth and last pillar of success for monetary union, the high degree of public awareness. The deliberate transparency of EMU institutions fosters close involvement of the citizens. The Treaty of Maastricht has imposed extensive reporting requirements on the ECB and on member countries in order to ensure transparency and accountability.