HI I need help with this homework business analysis question

Whitefish Inc. operates a fleet of 15 fishing boats in the North Atlantic Ocean. Fishing has been good in the last few years, as has the market for product, so the firm can sell all the fish it can catch. Charlie Bass, the vice president for operations, has worked up a capital budgeting proposal for the acquisition of new boats. Each boat is viewed as an individual project identical to the others, and shows an IRR of 22%. The firm's cost of capital has been correctly calculated at 14% before the retained earnings break and 15% after that point. Charlie argues that the capital budgeting figures show that the firm should acquire as many new boats as it possibly can, financing them with whatever means it finds available. You are Whitefish's CFO. Support or criticize Charlie's position. How should the appropriate number of new boats be determined? Does acquiring a large number of new boats present any problems or risks that aren't immediately apparent from the financial figures