Answer: As a recent business graduate, you will explain to Brendan and Sean that the "environmental circumstances are tough and dynamic to control" in business.
Explanation:
Since the team is doing horribly and the economic conditions in the area are poor, people can't afford to purchase tickets to see the games anymore. Since people aren't visiting the stadium they are not making money on memorabilia sales.
Since the environmental factors can't be determined for the future, they will need to base business decisions on their assumptions for the future of the stadium. Since nothing ever stays the same, Brendan and Sean will have to adapt and change the way they do their business.
They can possibly open an online store, go to different locations in the state, or expand their business to other sports or teams.