Vista Outdoor, Farmington, has announced that Mark DeYoung, chairman and chief executive officer, has retired from the company and the board of directors. Michael Callahan, the company's lead independent director, has been named interim chairman and CEO. The board is conducting a search for a permanent CEO and has retained a leading executive search firm to assist in the process. The board intends to consider both internal and external candidates for the position. Callahan has more than 40 years of experience in the sporting goods industry and has served as lead independent director of since the company spun off from ATK in February 2015. He has been the president and chief executive officer of Aspen Partners, a Utah-based consultant to the outdoor sporting industry, since 2008. From 1990 until his retirement in 2008, Callahan served in various merchandising, marketing, management and senior executive positions with Cabela's Inc., most recently as senior vice president of business development and international operations. Callahan is a member of the board of the Midway USA Foundation and formerly served as a member of the board of Bushnell Outdoor Products, chairman of the Congressional Sportsmen's Foundation and vice chairman of the Outdoor Business Council of the US Sportsmen’s Alliance.