Many professors are indeed bad. The reasons for this are almost entirely incentive structures in academia. How universities get their money, what professors are

Many professors are indeed bad. The reasons for this are almost entirely incentive structures in academia. How universities get their money, what professors are hired for, what they get salary increments for, etc. Fix those incentives and you won't have to do any of the things you suggest [1]. Good teachers want to teach well, the same way good musicians is always itching to play good music. [1] Though more but not all lectures should be recorded.