I think that this shift towards 'horsetrading' is the embodiment of the power of Germany. It has to engage with fixing things by throwing money at but at the same time it can leave it late enough to engage that things can be necessarily vague(like the stability amendment) allowing it greater via 'horsetrading'. In that way it lacks procedure so even the bureacracy in the EU is weakened. Its almost like they are playing chicken and papandreou decided to try and outchicken them this week.
Its hard to see how you could rebalance that power inequality, maybe by forming a coalition of the PIIGS?