Critical Mass has been covering the case of Frederick Lang, an English professor at Brooklyn College, who has been removed from the classroom due to student complaints, which appear to be only due to his grading policy. Prof. Lang is now discussing his case as the arbitrator has ruled; Lang is not a happy camper. I don't know enough about this from the first installment, though I will say that I too ask my students to re-write papers to improve their grades (and I'm not an English professor). I'll write more when I see the rest. I know one of my loyal readers has discussed this point at length in comments at Critical Mass, and I'll hope he summarizes his viewpoints in the comment box.