Final answer:
The disadvantages of the centralized approach include limiting creativity and flexibility, a large bureaucracy, and a lack of incentive. Decision-making power concentrated at the top hampers adaptability and responsiveness.
Step-by-step explanation:
The disadvantages of the centralized approach include discouraging new ideas, little flexibility on a day-to-day basis, a large bureaucracy, and a lack of incentive to work hard or better. In a centralized approach, decision-making power is concentrated at the top, limiting the input and creativity of individuals lower in the hierarchy. The lack of flexibility can make it difficult to adapt to changing circumstances or respond quickly to challenges.