The only real option I can see working is that Greek pulls out of the Eurozone, reinstates their own currency (Drachma), devalue it heavily in the hopes of making it cheap to invest and import/export, and grow that way. Maybe in the future they can rejoin the Eurozone, but until then they seriously need their own currency for any hope of recovery. The Euro is too strong for them and their hands are too tied. They do not really need the Euro either, and have always been seen as an outsider.