In dealing with cross-border corporate insolvency under Regulation (EU) 2015/848 of the European Parliament and of the Council of 20 May 2015 on Insolvency Proceedings, the centre of main interests (COMI) is used in determining where a main insolvency procedure can be opened.  Critically discuss whether the use of COMI is effective in enhancing the coordination of cross border insolvencies in the EU member states.