They are a changing. The future government office has been described by some social thinkers as a building complex that looks like a mall. Since most people are not sure which level of government is responsible for what service there should not be five distinctly separate buildings confusing us. There are city services, township services, county services, state services and federal services.
Government buildings are the center of political fiefdoms.
The structures and the supporting staff are maintained by separate taxing districts with different revenue generating systems and spending controls. Getting all five levels of government to share space and staff will not happen anytime soon. You can and will see cooperation between levels of government on the Internet. The software behind this site will digest your request and send it to the proper government body. All of the political and government power centers are undisturbed and, most importantly, you are satisfied.