After 18 years as head of America's largest bank, JPMorgan Chase CEO Jamie Dimon is preparing to retire. Indeed, finding a successor is now his top priority, Reuters reports. Earlier this year, the 68-year-old indicated he would retire in fewer than five years, but Bank of America analysts predict he'll step down as early as next year, per CNN. Though he didn't give a timeframe, Dimon said Tuesday that he and his team are focused on finding a replacement out of a list of "extremely" qualified people. "We all want to get that exactly right," he told pension funds and institutional investors in New York. Some names being discussed as possible successors: