PhD programming candidates at my work seem completely clueless to industry standards when it comes to coding because they've been mired in academia land for decades...
That's an example of something that can be quickly learned on the job, 1-2 days tops.
I know very few PhDs who are also sysadmins. And fewer yet who can properly diagnose issues with workstations, servers, etc. In college campuses, the labs are maintained by sysadmins. I've worked with PhDs who were "coders", yet could not set up their own programming environments because they were done for them in academia. Not all, but most. I'm not deriding PhDs here, but as one poster said, they generally work in silo environments and don't really understand the broader pictures around them.