 Let me ask Phil to come back around to this as well, since one of the things about this is, all right, everything worked. It was great, but not everything worked. So what didn't work? What still needs some work? What are some areas you still say, okay, that would be better if, or what are some areas that you could say, hey, that just didn't work at all. We got to reconfigure that. I'll ask Phil to start, and maybe if you want to pass it over to somebody else as well.