It was inevitable, not the result of some bad policy choice by outsiders, foisted on Greece:
Even before the 2010 program, debt in Greece was 300 billion euros, or 130% of GDP. The deficit was 36 billion euros, or 15½ % of GDP. Debt was increasing at 12% a year, and this was clearly unsustainable.
Had Greece been left on its own, it would have been simply unable to borrow. Given gross financing needs of 20–25 % of GDP, it would have had to cut its budget deficit by that amount. Even if it had fully defaulted on its debt, given a primary deficit of over 10% of GDP, it would have had to cut its budget deficit by 10% of GDP from one day to the next. These would have led to much larger adjustments and a much higher social cost than under the programs, which allowed Greece to take over 5 years to achieve a primary balance.
Even if existing debt had been entirely eliminated, the primary deficit, which was very large at the start of the program, would have had to be reduced. Fiscal austerity was not a choice, but a necessity. There simply wasn’t an alternative to cutting spending and raising taxes. The deficit reduction was large because the initial deficit was large. “Less fiscal austerity,” i.e., slower fiscal adjustment, would have required even more financing cum debt restructuring, and there was a political limit to what official creditors could ask their own citizens to contribute.
The full link is here. Here is Hugo Dixon on the new deal on the table, the one where Syriza finally and wisely realizes it has no alternative to austerity. I’ll stick with my Twitter prediction that yes there will be another “deal” of sorts, but it will break down rather rapidly, leading to true Grexit.