[Pxtl]

... oh God. I hadn't even thought of that.

The PA guys were running a one-man show. This isn't going to just be "A system made by somebody else". This is going to be "An entire infrastructure made by one overworked dude who obviously had no time to document anything or make it neatly organized".

Their entire infrastructure is organized and managed in this one guy's head. There will be at best a pile of notebooks and sticky-notes documenting things. Unless he suffers from a severe case of clinical OCD, there is approximately zero chance that the files, the code, the database, the servers, the jobs... anything is any condition to be handled by anything but That One Guy.

This isn't even a two-man job. It's a 10 man job.