OMAHA, Neb.--(BUSINESS WIRE)--Ballantyne Strong, Inc. (NYSE MKT: BTN), a diversified provider of digital technology services, products and solutions, today announced the departure of Gary L. Cavey from the positions of Director, President and Chief Executive Officer of the Company effective Friday, May 8, 2015. Chris D. Stark, who has served as Senior Vice President and Chief Operating Officer of Ballantyne Strong since May 2010, has been appointed President of Ballantyne Strong. “We believe th