Extra ranting: It's worth noting that there are a lot of businesses that also "do not fit in one persons head". Anyone who has spent time in a large organisation will be constantly coming across processes that seem designed solely to prevent anything happening and knowing how to get around it is a hidden mystery. I am sure there are billion dollar departments in my company I have no idea exist. And it's dubious that at any sufficiently large organisation it is truly understood by upper management - almost every corporate failure can be attributed to something like "Yes of course I know how engines work, we can move the forwards quite easily"
