Most companies suffer from the legacy code they inherit from software teams that disband or programmers just quick. Companies have to do something with the software and they can't throw it away. Most of them hire full-timers to support the code, maintain, and hope that they will improve it. This won't happen. Full-timers are not interested in doing that and they won't. If you want your code base to become better you need people who are interested in going into conflict with the code base and the status quo. Freelancers are your only option.

The full video is here: https://youtu.be/0gnDmr_H2Ks