Summer boot camp for students who are at risk.
This would require institutional investment, so it is a bit beyond my teaching scope, but I would enjoy being a faculty mentor for first-generation students. (We do have these and have them identified at my college. I will look into this and see if there is a mentoring program for these folk.)
I am not sure how much I would like doing this for developmental writers, though, which is the original idea from the book I was reading. Six weeks to do what we now have two semesters to teach? That would be difficult.
I do have some ideas, gleaned from other professors, which I have taken advantage of in my general classes which were actually originally aimed at at-risk students. It would be good to be able to use these for the students they were originally designed for.
This is also an institutional investment.
It is also an idea that my university is considering (not necessarily strongly).
As a former adjunct myself, I like the idea in some ways and dislike it intensely in others. It would definitely be better than flying the highway. However, it would not be as good as a hybrid or face-to-face course. Neither would it be as good an idea as paying a living wage to those instructors who are teaching for the university.