Answer:
is his/her responsibility
Explanation:
The main reason that Andy would continue to delegate the purchasing decisions to this manager is that it is his/her responsibility. Each manager or individual in the company has their own set of responsibilities that they need to get done. If Another manager begins to take care of the purchasing decisions on top of their own responsibilities they will be overwhelmed with tasks and would most likely create more errors and handle costs less effectively that the manager whose actual responsibility it is to handle the company's costs.
