JPMorgan Chase has made some key promotions, naming Doug Petno and Troy Rohrbaugh as copresidents of the bank. This move positions them as potential successors to the current CEO. The bank's announcement also mentioned Marianne Lak, though details about her role are not specified.

Further information about these changes can be found through KSAT 12's source, which provides more details about the promotions and their implications for the bank's leadership.