To add to your list:

Eurogroup: Tools: Capital controls, see Cyprus. Goals: Excluding outsiders from power, crushing of the Class enemy.

Commission: Grabbing as much power from the Eurogroup as possible. Tools: Bureaucratic infighting. Collaboration with the Class Enemy. Everything else that can be done without a budget.

Not only are Syrizia political outsiders, this would be the first leftwing government in Europe since [fill in once an example comes to mind]. I'm sure the reactionaries will go to extremes if they fail to force a surrender/betrayal.