The answer, of course, is obvious, if politically difficult to put into effect. Staff the SEC, or whatever "Super Regulator" the government decides to deputize to oversee this mess, with a bunch of highly-paid, tough-as-nails, sonofabitch investment bankers. You will have to pay them millions, just like regular bankers. (You can tie their incentive pay to improvements in the value of securities held under TARP and TALF, if you like.) Pay them well, and investment bankers won't be able to treat them like second-class citizens at the negotiating table. Pay them like bankers, and your regulators won't hesitate to read Jamie Dimon or Lloyd Blankfein the riot act, because they won't give a shit about getting a job from them later.

Trust me, these are the kind of people you will need on your team: highly educated, financially sophisticated, psychotically hard-working, experienced professionals who know or can figure out CDOs, SIVs, balance sheet leverage, and credit default derivatives just as easily as the idiots who created and trade this shit. Leading your enforcement and supervision teams you need a bunch of smooth, smart, plausible, grandiosely self-confident senior bankers who will not hesitate to tell Vikram Pandit to go fuck himself, his mother, and the cow she rode in on if he ever tries to fuck with the United States government, the US taxpayer, or the pizza delivery boy again. You know: psychopaths.

This is not a new idea. For yonks, the Brits have known that the best person to hire as gamekeeper on your ancestral estate is a former poacher, someone who knows what they know, how they think, and where to punch them in the genitals to get maximum negotiating effect.

it's about norms and operating culture.

Which is why social settings like the City of London are important. Setting up the work in another place would be easy but setting up an environment where everyone fawns over your sociopathic norms instead of condemning them, that is the hard part.

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