Research in Motion announced over the weekend that the company’s two co-founders have stepped down as co-CEOs of the embattled BlackBerry maker in favor of two relative unknowns. RIM’s Chief Operating Officer Thorsten Heins becomes the new CEO while Royal Bank of Canada executive Barbara Stymiest was named independent chair.

BlackBerry maker Research in Motion often seems to have two left feet when it comes to management. Now, after becoming a serial failure, the company is considering removing its biggest roadblock: RIM’s co-CEOs. But can it quiet a months-long investor revolt?