I often think of that when it comes to the Fed. I know next to nothing compared to the financial wizards, but it does seem like every major financial crisis started with some marginal movement by the Fed.
I'm not saying there's a better alternative, or necessarily knocking them - I have respect for them. But at times it seems like nobody really knows how the economy works, and each crisis is followed by an, "oops, let's not do that again."