I think it was obvious when Syriza was elected as the government of Greece they were never going to be able to deliver the anti austerity package they had promised to their electorate, most grandiose socialist plans can't be implemented when faced with the harsh economic realities, otherwise ruin inevitably ensues, so these idealistic proposals are kicked into the long grass. I think the prevarications of Tsipris and his former finance minister Varoufakis haven't helped one iota. Nevertheless, when it becomes patently obvious that a debt cannot be repaid, I think for the greater good, some of it needs to be written off, it's happened before for heaven's sake and the world still continued to turn on it's axis. Greece needs a "Begin Again" strategy where all the necessary measures are put in place and all the old nonsense they indulged in well and truly kicked out. I suppose the economically prudent countries are worried about the floodgates being opened and Spain, Italy etc. will want the same, but as they aren't as far down the ruinous road, I think it could be pointed out that if Greece isn't helped in this way they will surely default and then the whole of the EU will be losers.
What I can't understand is why anyone in their right mind thinks that this is a club worth staying in. A trading union absolutely. Fiscal and political union - just a nightmare, an unwieldy body of so many nations all with different characters and attitudes. It's like being in a class with a range of very mixed abilities, each individual knowing that they will never be good enough to hold their own against the smug class swot and he/she being the only one that really matters!