Brilliant response.
It's true, whether you think so or not. JLR will, of course, understand where, say, their engine ECUs come from, obviously, but they don't know where (for example) the capacitors come from inside it, because that's the job of Bosch, Magnetti Marielli or whoever, or maybe even another sub level.
Things that are appear quite simple are often more complex than thay appear. Like, say, Brexit.
There's the problem. Many Brexiters think *exactly* that it is that simple, except of course they believe the reverse.
They thought that we could just tell Europe to f*ck off and we'd have an empire back, give the jerries a good kicking and Britain would be great again, and we'd all be home for sandwiches and ginger beer. paid for with the change from the £350 million we'd get from the side of as bus. We'd have no more Muslims, no east Europeans "stealing our jobs" etc, etc, etc and there would be no downside.
The EU has plenty of problems, but people were mis-sold Brexit as a win-win situation when it is increasingly clear that is not the case.
It's someone's job to manage their suppliers. In turn, that supplier manages theirs. They manage their parts of the chain and maintain multiple suppliers in case of a problem with one. It's not even just a job. There's degrees in it. I'm pretty sure you're educated to degree level: for a subject to have a degree course dedicated to it, I think you'd have to agree there has to be a certain depth of complexity?
Yes, the private sector is universally full of efficient, capable employees, no wasters at all. I've noticed that.