Ben and Leslie propose a solution to solving the budget crises, but accidentally suggest that all D1 employees (low-level) should be terminated. Because there is a limited amount of funds available in the city budget, any money moving to one department must come at the expense of another department.
Leslie asks a city councilor to not cut the Parks budget 8% and to find the money somewhere else. The counselor decides to propose shutting down the local animal shelter in exchange. Because funding is scarce in the local government, the city councilors have to cut funding in one area to save another department.
A soccer field is double-booked by the Parks Department and Leslie has to work out a solution for who gets the field. Because the field is rivalrous, both can’t use the field at the same time. One team’s use implies that the other cannot use the field.