The misalignment of economic ties and political borders is something that the US makes almost impossible to change, but leads to a lot of dysfunction all over the place.
Compare New York and its subway with Madrid, which has the most efficient Subway operation in Europe. Madrid's subway is also controlled by its state, instead of by the mayor, but go look at the state borders: It's pretty much the metropolitan area. It makes the voters' interest line up pretty well with each other as far as functioning government goes. It's not that there's no corruption in Spain: there's plenty. But bad results can be punished electorally.
In contrast, look at US borders, where a whole lot of metropolitan areas are split, and we have many states with multiple metropolitan areas. What does someone in Branson, Missouri have to do with someone in Kansas City? And yet, Kansas City is in two states. We also have metropolitan areas with dozens, if not hundreds of municipalities, which try to fund themselves via sales taxes and highway tickets, as those are often paid by people that don't live in the municipality, but just pass by. The people that control the majority of the votes and those that suffer the consequences of the decisions don't line up.
If you gave a foreigner an population map of the united states, and handed them a bunch of demographic layers, like where people go to work, or some basic political opinions, and told them to create a map of states and metropolitan borders, the map would be completely different from what we have. And it'd be especially different around our metro areas. And yet, we couldn't change any of those things to save our lives. It's not hard to draw borders that lead to more efficient government, and where more people are either happy with their government, or have a realistic chance to change its composition.
So ultimately blaming this on consultants is not going deep enough: We have very few forces pushing for a government that is efficient, with sufficient state capacity. But while a company can reorg, state borders are too important for national politics to change.