The fact is that, over that two year period, much less attention has been given to the practical implementation of new institutional proposals included in the proposed treaty. Even a cursory examination indicates that the implementation of some of these proposals is likely to be uneasy, and in some cases could be a source of future problems or difficulties. This is why three Brussels based think-tanks have thought it useful to join efforts in analysing potential implications of the most significant proposals in the field of institutions. Seven issues have been identified, shared out and debated in working groups, and this publication contains the results of that collective effort. Our aim is to highlight, and if possible, clarify potential problems. We have worked on the basis of the Reform Treaty approved at Lisbon in October 2007, without wishing to cross the lines of the presidency or to pre-empt the conclusions of the ongoing process.