In the contest to fill the big shoes of Jamie Dimon, there are a few established names. Mike Cavanagh is one of them. The one-time J.P. Morgan Chase CFO is now head of Treasury and Securities Services at the company. Though he has long been considered a leading candidate for the bank's top job, picking Dimon's follower is a tricky game. A succession plan is reportedly in place, but with no plans to retire, Dimon could keep the Street guessing for a long time yet.
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