In this July 14, 2009 file photo, BlackBerry maker Research in Motion's co-CEOs Jim Balsillie and Mike Lazaridis pose with their Blackberry devices before the RIM annual general meeting in Waterloo, Ontario. The company on Sunday says Balsillie and Lazaridis are stepping down, and will be replaced by Thorsten Heins, a chief operating officer who joined RIM four years ago from Siemens AG. Associated Press