Right, but there was a source of knowledge (the two older employees) to obtain information from. If one of those older employees is irreplaceable, and they leave, it's going to seriously impact production systems.
These guys work at a school district. They're not working somewhere that it's going to make a huge difference to have some impact on production systems.
Honestly, I'd put my money on it being in the organizations best interests long term if the two older employees did leave them in a rut. A lot of times it's good to purge these types of places of the cruft left behind by legacy.
