I got hired on at a job to replace a guy like that. He &quot;got so much done&quot; and &quot;worked so hard&quot; (was at the office late) until he up and left.<p>Step 1 when I got hired on was to automate away half of what he was doing. I turned processes that were previously three hour projects into five minutes and a shell script. Not many late nights or 16 hour days for me.<p>Step 2 was to finish all the work he&#x27;d left behind. It wasn&#x27;t unusual to get a bug report coming in &quot;Oh, in screen X when you try and do Y it doesn&#x27;t work right.&quot; only to find that while he&#x27;d built an interface, there was <i>no code behind any of it</i>.