My company would be lost without institutional knowledge because it (unfortunately) doesn't document things very well and the problem solving methods rely on "t

My company would be lost without institutional knowledge because it (unfortunately) doesn't document things very well and the problem solving methods rely on "tell x to fix it". Somehow we manage to survive when developers start to leave, though, but only after a lot of setbacks and arguing about who the new maintainer is. I used to work in a situation that couldn't maintain much institutional knowledge: a college IT department with student employees. The students wouldn't work for more than 4 years and buggy or inadequate applications were more often redone entirely in different languages rather than given new maintainers.