Which group of people would be the most concerned about the operating areas that have contributed to the success of the firm and which have not?

Management / Competitors.

Explanation:

The company's management is configured as the group of people who would be most concerned with the effectiveness of the management of the operational areas to achieve the company's success. Effective management must understand the organization as a system that must be integrated so that organizational activities flow effectively to achieve objectives and goals, in order to coordinate, control, monitor and review activities and subordinates so that the organization generates positive results in the market.

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