I can't remember exactly why, but I had occasion last weekend to reread a presentation that Steve Strongin of Goldman Sachs gave at one of our conferences about a year ago.  I was impressed with it when I saw and read it at the time, but time has only improved my understanding of just how good it was – and is.  So, if you want to read perhaps the best summary of what has gone right and wrong with post-crisis regulation, and an approach to deciding what rules should be kept and what rules discarded or modified, I'd encourage you to spend some time with it.