easy in Harvard referencing THEORY: Analyse and critically evaluate the four contingency approaches to leadership; Fiedler's contingency model, Hersey-Blanchard's situational leadership model, House's Path goal leadership theory and, the VroomJago leader-participation model explaining their premise, procedure and practice. PRACTICE: Evaluate the effectiveness of the four contingency approaches to leadership in terms of their application in the contemporary workplace, generally, and to the manager/business .