“…Karlsson & Åhlström, 1996), empirical research on plants with detailed knowledge of the Toyota Production System has indicated that these are characterized by narrow spans of control, with work unit leaders occupying strong positions of formal and informal power (Delbridge et al, 2000;Inamizu, Fukuzawa, Fujimoto, Shintaku & Suzuki, 2014;Ingvaldsen & Benders, 2016). Ingvaldsen and Benders (2016) argued that such arrangements are functional for the just-in-time production process, as supervisors handle coordination, coach workers, facilitate improvement activities, and form a buffer of manpower in the event of production disturbances. Furthermore, supervisors should act as 'benevolent fathers', educating workers but also disciplining them when necessary (Dore, 1973).…”