May be they need to incentivize people differently: charge money to sign up for a course. If you finish it, you get it all back (or a certificate - your pick! I

May be they need to incentivize people differently: charge money to sign up for a course. If you finish it, you get it all back (or a certificate - your pick! If you are in the top 10% of the completers, you get a degree as well as your money). If you get through 75%, you get half back. If you get through 50% you get 25% back.