The fields of Organisational Behaviour and Organisational Development have become important to modern enterprises. OD needs an understanding of OB to be effective.  The basic building block of OB is the individual. How well an individual performs in an organisational setting depends on self-esteem which feeds on identity. A person’s sense of who they are or their self-image is linked to their group membership. The Bantus needs to know who they are to be achieve their potential at work and at home.