Growth to became poorer?

Not everybody seems to have learned the most important lesson from the current crisis, which is the following: at time of major structural changes and build-up of huge imbalances like ours, it is no longer possible to use only flows (like GDP) as performance indicators, neglecting what happens with most macro-economic stocks (e.g. households' wealth, business debt, quality of banks' assests). The only stock that has been carefully considered for a long time is public debt, but to be honest we are not even able to assess its sustainability correctly beacause by a mere accounting habit we compare it with the GDP, which is a flow.