Answer:
(a) the environment is a dynamic one, and department and frontline managers can come up with more responsive plans than can central leadership.
(d) when managers come up with their own plans, they are likely to be more committed to following through on them.
Step-by-step explanation:
Firstly, research has shown that both decentralized decision structure (where managers are allowed to make their own decisions) and planning activities; are associated with higher performance in dynamic environments.
This is one reason why the organization’s executives might opt for the decentralization approach to planning - because of the organization's dynamic nature
Secondly, when managers come up with their own plans, they are likely to be more committed to following through on them. When managers participate in planning it serves as a motivation for them to achieve it which is preferable to forcing the plans on them from senior management. This might have been the reason for Alcoa's improved performance when Paul O'Neill took over, in relation to safety records. Managers may have been allowed to make their own safety plans