2. Explain the key approaches to operations management and explaine the ROLE of leaders and managers play in this, and use JUST IN TIME (JIT)and TOTAL QUALITY MANAGEMENT ( TQM) and use BMW as an example. 3. Assess the factors within the business environment that impact upon operational management and decision-making by leaders and managers. you are required here to assess the factors within the business environment that impact upon operational management and decision-making by leaders and managers. Please review this section and provide a full assessment of the internal as well as the external factors that impact upon BMW operations and decision making.