As to the IMF and its medicine: There's always a reason if the IMF is called. In other words, there's a major problem with a state's finances.
Compare the few who has rejected IMF "help" with those who accepted it. Those who rejected it and came up with another solution to the acute part of the crisis always end up in much better shape.
even exiting from the Euro won't save them.
It is by far the most effective help they can get though. Greece used to be THE holiday nation in Europe, then they were allowed into the euro at a far too high and fixed rate, and now it´s twice as expensive to go there, or even more, so their single biggest industry, tourism, has crashed to something like 1/4(or below half depending on how you count).
In that situation, creditors demanding those kinds of reforms (read: cuts into the standard of living) Greece has been unable to do on its own, which are essential for eventually ending the Greek debt party, seems to be sensible.
A sizeable portion of Greeks are already at the point where they are unable to survive, and something like a third of the commercial sector are not getting any business, because too many don´t have money to spend.
Backstabbing the economy at this point without something to pull it up would be suicidal. Or murder.
Look at what the austerity demands when the Greek troubles began caused. Definitely did not solve any problems. Made it worse, which is why this is where they ended up.
The SMART thing to do would have been to have Greece default on the original debts, and have governments of the banks that would then crash elect whether to keep them upright by buying stocks at a "fair" price, or let them crash.
Let the idiots who lent the money take the risks of their actions instead of just buying them out at a ridiculous 1:1 rate.