Why would city road repairs already be breaking down?

In my neighborhood the road repair crews have been doing a particularly horrible job. I’m not sure if they’re 3rd party contractors or city/state workers. They recently had speed bumps (the large asphalt kind) installed and we joke that the speed bumps are the only smooth section of road.

My question is why would road repairs fail so quickly? Are they cutting corners? If so, what corners would that be? Could this be a case of contractors giving kickbacks to local government officials? I’m too unfamiliar with road repairs to understand how new repairs could fail very quickly, but perhaps some of you have insight into what may be going on?