Role suction
Role suction is a term introduced in the United States by Fritz Redl in the mid-20th century to describe the power of a social group to allocate roles to its members. W. R. Bion's group dynamics further explored the ways whereby the group (unconsciously) allocates particular functions to particular individuals in order to have its covert emotional needs met; and the process has recently been highlighted anew within the systems-centered therapy of Yvonne Agazarian.