Answer: Based on the concept of scarcity, they should be concerned about the amount of energy they have to sell and the supplies to clean the cars.
Q:Where will unsold energy drinks be stored?
A: They should consider the amount of space they currently have. If there is not enough room they can be consumed or thrown away if they go bad.
Q: Is there enough consumer demand for a car wash?
A: Make sure that people in your area actually NEED a carwash. There would be no need to have one if nobody would pay for one.
Q: Will the concession stand be open during the big game?
A: Chances are you will have competitors during your sale. Make sure your prices are reasonable and that you have something the attract people to your business.
Q: Are there enough volunteers to work a car wash?
A: Make sure everyone is in agreement of the plan. If nobody wants to do anything nothing will get done and nobody wins.