Reverse inner covers?

Just read James Tew's article in Bee Source that came today. One of the things he mentioned is reversing inner covers in the fall. He didn't explain, just included it in some of the things he should do. I thought if you reversed the inner covers, it would mess up the bee space. Would anyone like to explain this to this newbee?

Thanks

BB

Either way works fine. I prefer the extra space and the notch down for winter, but the bees probably won't care at all. They won't be building comb in the winter, so burring it up isn't an issue.