Earlier quoted context omitted.
By leaving the Euro Greece will have the opportunity to put their country back together without 20 years of crippling austerity. They still need to fix their broken tax system and keep spending with their means but they have a much better chance of doing this on their own terms rather than under the cosh of the Troika. If only other countries could be so brave.
What is the difference between "crippling austerity" and "keeping spending within their means"? Isn't the biggest financial problem in Greece the relative enormity of the public sector? Wouldn't fiscal reform basically amount to slashing entitlements and public sector employment?
(I don't really understand the situation well enough to say whether or not they could possibly maintain the same level of activity outside of the Euro, but I think this is the logic behind that argument)