(5)Payment card schemes and processing entities that are not separate legal persons should at least be organised as different internal business units. Staff of payment card schemes and staff of the processing entities, including senior management, should be independent and accommodated in separated workspaces equipped with restricted controlled access. To promote the independence of senior managers when two entities are part of the same group and to prevent the practice of ‘revolving doors’, senior managers should be prohibited from taking on work for the other side of the business for a minimum duration of one year after they have left the entity they were working for.