This is especially true for work that is complex and varied in scope. For routine work, the benefit of heterogeneous team member competencies is less noticeable. Complementarity is also implied in strategies involving diversity in the workforce . This model assumes that employees have jobs with specific and identifiable tasks. Job-based staffing is measurement and assessment driven.
Work is generally standardized and repetitive in an organizational hierarchy.
Job performance is readily verifiable. This model works best with organizations defined by stable environments. This model assumes that employees have roles defined by the organization's strategic goals. Role-based staffing is strategy driven. Work is flexibly defined and often carried out in a flattened, decentralized or matrix structure.