Barely a year removed from the devastation of the 2008 financial crisis, the president of the Federal Reserve Bank of New York faced a crossroads. Congress had set its sights on reform. The biggest banks in the nation had shown that their failure could threaten the entire financial system. Lawmakers wanted new safeguards. The Federal Reserve, and, by dint of its location off Wall Street, the New York Fed, was the logical choice to head the effort. Except it had failed miserably in catching the meltdown. New York Fed President William Dudley had to answer two questions quickly: Why had his institution blown it, and how could it do better? So he called in an outsider, a Columbia University finance professor named David Beim, and granted him unlimited access to investigate. In exchange, the results would remain secret.