Detlef Daues attends the OPM 26-class at the Harvard Business School, Boston/USA (HBS) with graduation in 1998. OPM stands for Owner-President-Management and is a resident executive program for mid-career owners and managers. The personal collaboration with Professor Benson Shapiro has a major influence on V-LINE development and realignment: MRO Supply – from a trading house to a service provider will be the new business model.