I didn't read the spoilers or see the previews beforehand, but, for some unknown reason, I just knew when the show started that, somehow, Faith was going to try and replace Buffy. But, honestly, I was expecting some sort of time shift spell that would have reversed history and made Buffy the one who had killed the Finch and went to work for the Mayor. Just shifting bodies was kind of a let down, story-wise. I will say, though, that it allowed both Sarah and Eliza the opportunity to shift roles, and they both did a superb job of it.