I think you’ve got Krugman right on the Euro.
Europe's Many Economic Disasters
It's depressing thinking about Greece these days, so let's talk about something else, O.K.? Let's talk, for starters…
I’m not sure where his position fits into the neoliberal/Keynesian dichotomy, if that’s a useful dichotomy. After all, Milton Friedman was as hard on the Euro as Godley was: https://www.project-syndicate.org/commentary/the-euro--monetary-unity-to-political-disunity