There was a time when it seemed everyone in the world of business was carrying a BlackBerry.<br/> But in recent years the device's maker Research in Motion has seen its market share slide, as it failed to keep up with more innovative competitors like Apple and Google.<br/> In response to investor pressure the two men who built the Canadian company from the ground up have stepped down as joint CEOs.<br/> Mike Lazaridis started RIM in 1985, before being joined by Jim Balsillie.<br/> They grew RIM into a global business with $20 billion in sales last year.<br/> Thorsten Heins will replace them.<br/> He's been with RIM since 2007, and says he knows what he wants from the company.<br/> SOUNDBITE: THORSTEN HEINS, RESEARCH IN MOTION PRESIDENT AND CEO, SAYING (English):<br/> "Never lose this innovation spirit but also make sure that when we say a product is defined that we move decisively into execution mode and get the product done in good quality, in good time and also at good cost."<br/> Analysts are cautious.<br/> Heins is a key lieutenant of Lazaridis and Balsillie.<br/> It's feared he might not be the transformational leader the company needs at a time when its share price is hitting eight-year lows, falling 90 percent since 2008.<br/> RIM seemed blindsided by Apple's introduction of the iPhone in 2007, and was slow to launch a competitor to the iPad.<br/> Its tablet, the PlayBook, got a lukewarm reception and sales have been slow.<br/> Worst was a damaging outage to much of the BlackBerry network last year.<br/> One of Heins' first acts as CEO was to emphasise the company's focus on customers.<br/> Investors will be watching closely.<br/> Andrew Potter, Reuters
