Five months after a data breach that compromised credit card data for 40 million customers, Target CEO Gregg Steinhafel has agreed to step down from his position running the retail giant. Steinhafel is also stepping down from his positions as president and chairman, and giving up his seat on the board of the company. Chief Financial Officer John Mulligan is expected to take over as president until a successor can be found. No one from Target has officially linked Steinhafels departure with the data breach, but given the timing, theres little doubt that the scandal brought about todays resignation.