the biggest problems seem to arise if the dividing line between independent and executive directors is drawn diagonally from top left to bottom right of the learning board model. Here the chairman is definitely responsible for policy and the managing director for supervision of management, but there is every possibility for confusion and argument about strategy and accountability unless there is a highly robust process by which the directors and executives debate and reach consensus. Such a process is rarely well developed so turf wars break out between the perceived two types of director.
