Re: On occasion
I've been in this situation several times, and in each case the predecessor was not a sysadmin. He was a member of staff that had some technical literacy, that started with the system when it was around 5 workstations using workgroup sharing. The guy looked after it while doing his normal day to day job. Over the years the number of desktops increased, the guy while still doing his day job figured out how to install windows server and exchange, it probably took him a few attempts. His day to day job didn't relent, and he found himself working later and later into the evening. As the number of users increased he became the help desk for every jammed printer and power cycle. Fast forward a couple of years his normal work is suffering, he no longer has the time for IT and he's mentally exhausted from the stress of keeping a multimillion £ company running. Then he leaves. The company takes on a new person to do his non-IT job, and in we get called to look at the IT.
The owners of the company probably have no idea what he was doing to keep the system going, after all he'd just always done it for years, they never needed to spend money.