Stingray Digital Group Inc. is expanding its management team with the appointment of a head of content distribution in the United States. Rick Bergan, who previously held the senior vice-president of distribution position at Music Choice, a Stingray competitor that filed a patent suit against the company in June, has been appointed to the newly-created position at the Montreal-based music distribution company, according to a Tuesday press release. He was most recently executive vice-president of business development and sales at Comcast Corp.'s OneTwoSee, which...