BlackBerry startled many when it booted Thorsten Heins, particularly smartphone owners -- would interim chief John Chen want to preserve the company's handset business? Those customers can relax, at least for now. Chen tells Reuters that he expects to continue phone development, arguing that there are "enough ingredients" for long-term success. Executives at the company can't rest so easily, however, as the new CEO intends a shake-up of BlackBerry's management that will include some outsiders. The strategy should reassure nervous fans for a while, although Chen will need to back up his words with deeds -- after all, his predecessor made numerous promises that didn't quite pan out.