The next step should be a broad-based coalition government, with a new prime minister, who would be in a better position to start in earnest with the implementation of the plan.
Supposing a coalition government cannot be formed immediately, a referendum at the beginning of December, with a clear-cut question (made perfectly clear if necessary by the Eurozone authorities and the ECB), might still be the best way to manage the Greek-debt problem.
Should the answer be “no”, the Greeks will have all the time they need to sort out the internal politics of the situation through new legislative elections – unless they prefer to settle their accounts on the streets, which is doubtful, since we are dealing with a democracy and an uncommonly intelligent and practical people.
But if they vote no, let the banks – Greek, French, American, British and so on – shoulder the Greek debt, unless somebody can show a good reason why the Eurozone governments and their citizens should substitute for the Goldman Sachs of this world.
Also, getting rid of the Moody’s, S&P’s, Fitch’s and similar incompetent moneygrubbers is becoming a priority. Not only are they unable to predict problems in due course (remember the subprimes!), but they make them much worse with their theatrical announcements of triple ZZZs.
A triple KKK in the AAA is what they deserve, along with a plus rather than a minus.