Movements
The magic of duplicate bridge is the ability to compare pairs (or teams) that have played the same boards. Achieving this requires the development of movements (or schedules) that ensure players never play the same cards or opponents twice. There is a whole mathematical field for the study of balance of movements. Club Directors do not need to know all of this detail, the resources on movements on this page provide all a Director needs.
Other resource which may be of interest to Directors:
A diagramatic representation of a six table individual movement.