The European Central Bank (ECB) on Tuesday (24 September) said it hired Oliver Wyman, a US-based financial consultancy, to help out with a thorough audit of the 130 largest banks in the eurozone. The review of the banks’ balance sheets and capital needs is a prerequisite for the ECB to take on a new task—that of a single supervisor (SSM) for these “systemic” banks. Oliver Wyman is a known name in the world of eurozone bailouts and bank “stress tests.” Back in 2006, it famously said the Anglo Irish Bank was the best bank in the world. Three years later,...