That's already the starting point. People who really understand the business, and developers who work with them. The point is that the developer also needs to understand the business well enough. You cannot separate that from coding if you want good results. A good technical business analyst that sits in between the business and the developers can really help, but that is no substitute for the developer having good knowledge of the business and what it is actually trying to accomplish.

Sometimes the business only has a high level goal in mind and it is up to the developer to invent a solution, keeping in mind how the end user will interact with the system in their day to day work, and foresee potential issues in how the changes would impact other systems and business rules and so on. The developer has low level visibility of systems that are not readily apparent to business people. It is necessary for us developers to hide some of that complexity from the business. Some backends are very complex webs of business rules.

The developer needs to have some bigger understanding of it all, otherwise they are reduced to a code monkey who implements spoon-fed acceptance criteria from Jira tickets, makes stupid mistakes that break other functionality and systems, and won't recognize various issues that were not apparent to the business person who originally wrote the AC's. Basically we need developers to collaborate with the business to design and develop solutions properly.