Frank Koch is leaving as general manager of Green Fitness, the company that markets Greenmaster's licensed line of Reebok fitness equipment in Germany, Austria and Switzerland. He will be replaced by Erik von Delius, who is also a shareholder in the company, where he had been in charge mainly of its global license for Adidas tennis tables. Koch is leaving for personal reasons after building up the operation in the past six years, almost from scratch and up to a point where Reebok has become the No. 2 or 3 player in the market. He is finalizing a contract to join another sporting goods firm, but not in the fitness segment. Prior to Green Fitness, Koch was sales and marketing director of Kettler's fitness and table tennis division. Before that, he worked for Prince, Pro Kennex and Icon Health & Fitness.