Volcker Does Not Get It « naked capitalism
Now even assuming we wanted a partial reversal (more on balance sheet lending), this is not an quick process. It is costly (as in banks on average would have to have much bigger balance sheets, hence vastly more equity than they possess now. Think of what it would take to reduce the use of plastic by 50% because we now know plastic has nasty environmental consequences. Going back to considerably more on-balance sheet lending would be a similarly large undertaking).