Well it might be different in the UK, especially since you are at a big university.Oh, that is kinda weird. There's probably way more than 10x more possible teachers than subjects at my Uni. They usually know the course they're teaching like the back of their hand, but that doesn't mean they're good at teaching it.
But here, we are a pretty small university, with more subjects than teachers. For like Computer Science, some of the teachers specialize in a thing or two. Some classes don't have a teacher with that specific specialization.
I've had several professors make comments like "I understand most of this, but not quite everything." Its just a little bit outside their specialization. Even some more staunch teachers.
Well, the networks book has lots of comments about being challenging and that there's 1000's of PhD's worth of challenges in the field. So even a specialist wouldn't know anything.
It's just a little different from what I've seen in high school and under.
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