Advice on how to speed up the sprint from 2 weeks to under 2 days? Teams need a quick solution that lasts

codebase tells you what the system currently does but not WHY it was built that way, a well maintained document adds more value in such cases. how you maintain such docs that go stale with changing business decisions?

Dunbar's number is another manifestation of Coase's ceiling. Coase's insight is more general, as it applies not only to every other kind of organizational dynamic, but also to, e.g., the scaling of friction in mechanical systems.