Irony of ironies: this is probably our best bet for a policy change in the right direction. Ultimately, markets do want austerity, but in the Augustinian sense: they also want growth, and if growth requires printing money and running deficits, they want that too. Just not printing money and running deficits in currencies they're holding.
If investors show their lack of confidence in a policy that is designed purely to give them confidence, then policy change is the only response that makes any sense.