Answer:
The answer is the Marketing Manager.
Explanation:
To begin with lets see what are the 5 functional areas of management.
Out of these, the marketing manager must have a clear understanding and an idea about a firm's products and services and those offered by competitors because in the end, he or she is the one who is going to sell the product and make money to the company.
Understanding competition and their products will aid the marketing manager in developing strategic marketing planning to capture a wider share of the market.
Moreover, this will support to identify what sort of changes are required to made in the product to accelerate its selling and growth potential in the future.