What do you do when your career on Wall Street has come to an ignominious end and you need to keep busy lest you end up spending the rest of your days playing bridge or golf? Take a job in academia! Greg Fleming, the former president of Merrill Lynch, is now a member of the Yale Law School faculty: This semester, he's teaching a class that will explain the "economic events of the past year," which should also help Fleming shed some light on what exactly he was doing as the man in charge of risk management at Merrill Lynch the past few years. Fleming isn't the only one.