According to the text, is the relationship between different levels of government sharing and squabbling over power.

I believe the answer is: Federalism

Federalism is conducted by dividing the government into one central and several regional governments.

Under federalism, the central government would has a supremacy over the regional government, meaning that if the decisions made by the central and regional governments contradict each other, we must follow the one that made by the central government.

in this scenario it would be the consumer demand as most influential in making the decision. the band members need to figure out where and from whom they will make the most money, in other words who out of the two consumer groups - football fans or car drivers - will spend their money, who is more likely to contribute to their cause and buy what they are offering.