Originally posted by mazdavirgin
Depends on the field... In the EE world if you're doing controls, embedded systems or something along those lines replacing someone is a 6+ month ordeal for them to come up to speed if you hired someone competent. If not they never come up to speed and you get to axe them two years later when someone finally figures out that things are not working out.
Knowledge work is a lot less interchangeable than it might first appear. Losing a project lead engineer for these types of projects can at times result in the end of that product line if the documentation wasn't adequate. Sure you can replace people but it takes ages before people are ramped up and ready to fill in the previous persons shoes. There's a reason on a single project we might have 5-10 EE's yet we will have 10-100x that number of support staff.
This is true. I'll use two examples that are directly related to me
1) Automation guy (EE)
He's the go to when the DCS has issues. He can code, program, and knows the system. Since day one.
2) simple boiler operator (power engineer)
Has commissioned the plant and been there for whatever - 20 years. He's the guy you need when a line lets go, a pine hole leak has started or whatever. He knows without blinking what valves to open or close without hesitation and the amounts of control needed on the DCS to bring the plant to a safe state the safest, fastest way.
Both of these guys can not be easily replaced. And if they need to be it'll take years before the new guys are up to snuff.
I'd like to say a truck driver can be replaced easily as his job competency level may increase at the same pace as my other two examples, but maxes out much sooner. He'll be excellent within weeks for example.
"The most merciful thing in the world, I think, is the inability of the human mind to correlate all its contents... some day the piecing together of dissociated knowledge will open up such terrifying vistas of reality, and of our frightful position therein, that we shall either go mad from the revelation or flee from the light into the peace and safety of a new Dark Age."
-H.P. Lovecraft