The big thing that’s changed has been the external environment of what it means to teach in university. Universities used to be communities; they used to be places where intellectual life really happened. They were also places where avant-garde stuff was happening. And that’s – in England anyway – completely ground to a halt. Universities are largely sold as factories for production of increasingly uninteresting, depressed people wandering around complaining. There’s been a middle-management take-over of our education, and it’s depressing. So universities, like the university I was at – Essex, which was a radical, experimental, small university, but had a bad reputation but did some great stuff – have become a kind of pedestrian, provincial university run by bureaucrats. That was one of the reasons why I got out when I got out in 2004.
(Thanks for the link, Exp.lore.)