Both in terms of macroeconomic policy and financial system measures, to take prompt and bold measures to address a financial crisis is not easy for any country, but is quite important. Without those measures, the economies will be forced to experience heavy adjustments and might end up in a perfect storm.
At the same time, however, crisis responses do not eliminate the excesses accumulated in the periods preceding the crisis. When those excesses are really massive, it will take long for the economy to return to a sustainable growth path. Japan’s “lost decade” was partly attributable to such an element.