During the financial crisis, Jamie Dimon was in a war room five times a day, every day for a year, starting at 5am and finishing at 10pmEleanor Pringle

Jamie Dimon summoned staff at JPMorgan back to the office at 9pm afterg a call from Bear Stearns CEO Alan Schwartz, in which he said he needed $30 billion. Read More Jamie Dimon summoned staff at JPMorgan back to the office at 9pm afterg a call from Bear Stearns CEO Alan Schwartz, in which he said he needed $30 billion.