Factories and products
Teams are now factories and projects are now products, and an organization runs as many factories as it needs, each with its own instructions and knowledge that every product in it builds on.
Most organizations do not build one product. They run business units, platforms and systems made of many services, each with its own conventions, domain knowledge and people. Guidance written once for the whole company is too broad, and guidance written per product gets repeated and drifts apart.
A factory is the level in between. It holds the instructions and knowledge its products share, on top of the organization's, and decides who can reach them. A payments platform built from six services becomes one factory with six products: the domain rules and the definition of done are written once, and every service is planned and built against them. One factory's context never reaches another's products.
When your organization changes, a product moves to another factory in one step. The people who gain and lose access are named before anything changes, and the move can be undone.