[bartread]

> that part requires a lot of training and expertise, if not an engineering degree and many years of experience.

Not in this place it didn't: nobody had a degree, and even the permanent staff weren't on particularly good money. For sure, better money than I was on, but not by a wide margin in most cases, and I'm talking here about people who in some cases had worked their for decades. As for the chemists, my degree was half biochem and half chemistry and I'd just finished my third year so I was probably "better qualified" than they were. They absolutely knew their jobs but, again, no degrees.