Muckraker Greenberg: Managers Failed (After I Left) by Zachary Roth 04.02.09 | 6:30 am 0 From Hank Greenberg’s testimony in front of Congress, which just started: AIG’s business model did not fail. Its managers did. In 2005, Greenberg stepped down after a 37-year run as AIG’s CEO. We’ll be following his testimony closely. Send Tips Zachary Roth