No point in having a super expert physics researcher tenured professor who hates teaching and can't teach worth shit teaching a bunch of students, when he could be doing his research and the students could be watching a recorded lecture of the same material from someone who likes teaching, over the internet (e.g. MIT's online course offerings).
I don't know if it would work once you got beyond first year and into the more difficult material.
Some of the best physics professors I ever had were super expert physics researcher tenured professors who hated teaching. They weren't quite as good as the super experts who liked teaching, but they were better than the ones loved teaching but didn't have nearly enough knowledge to go far beyond the coursework. And certainly a lot better than a video of the same material.