Which might be a good thing if the loss of knowledge came from employee turnover. If the architect / author leaves, the visions leaves too. Next step is monkey

Which might be a good thing if the loss of knowledge came from employee turnover. If the architect / author leaves, the visions leaves too. Next step is monkey patching, fast forward a couple years, a decade or two, more turnover, and you end up with a indescribable mess. In this case the replacement is all about re-gaining the knowledge.