We know that the regulatory structure of our financial system is about to change. When I originally wrote this column earlier in the month, Congress was struggling to approve some sort of โ€œrescueโ€ package, with both the House and Senate reworking the first $700 billion plan that didnโ€™t pass muster. Now we have a rescue plan, but the details remain vague. Whatever the final outcome, we can expect to see an entirely new financial system-wide regulatory structure.