Companies do not need to chase every management trend and constantly restructure. However, when megatrends like digitalization lead to a sustainable paradigm shift, companies are required to cyclically adapt their business models, processes, and structures to remain competitive. This book offers a proven practical guide for the transformation of structures and processes in companies, particularly in small and medium-sized enterprises. At the center is the change model STEB, an approach developed by the authors for managing development and change initiatives. The STEB model provides both a basic recipe for optimizing structures and processes, as well as fine-tuning that allows change processes to be managed according to the specific situation and needs of the company.