Peer Editing

I know this has been a blog conversation already, but it’s strange to me how little I feel gets accomplished during our editing sessions. Everyone comes to the group with a few specific things that should be changed, but I feel like my rough draft looks exactly like my final paper. Should revision be completely changing the original paper? I spoke with a friend at a different school who said that in his writing class they got marked down a grade if their final paper looked anything like the rough draft, which made me think.. if that were our class I’d be in big trouble. However, maybe requiring the drafts to look significantly different would be an effective way to be sure people don’t think they’re done after one draft. Any thoughts?