In any case, the accession countries will have to make their NCBs independent and accommodate the integration of their NCBs in the Eurosystem. It is important to note that accession to the EU and the introduction of the euro will, in all likelihood, not coincide.
And as Patrick Honohan said in his review, supervisors need to be decisive in following through on issues. Our PRISM system is designed to provide a framework that prompts such action; for example we closely track progress against risk mitigation plans.