I'm surprised anyone thought he'd play exclusively at SG...
He certainly needs to improve some of his PG skills, and I think he'll be more effective at SG, but Westbrook cannot play point at all. We have numerous SFs who need lots of minutes, and both Westbrook and Joseph are too small to do more than spot duty at the 3.
I'm expecting a very good season for Joseph, but we just don't have enough time for both he and Westbrook at the 1 rotation position. Some of Joseph's minutes will have to come at the point. Nolen does some things well, but his total lack of any offensive game is just too big a hindrance many times. I expect Cobbs to be a significant contributor too, but Nolen's going to find his minutes evaporating pretty quickly if he doesn't make a jump this year.
Allen may contribute to this team eventually, but I certainly don't expect much from him this season due to football. A couple years practicing with the team and he may contribute more.
In 2011-12 Westbrook will be gone and Joseph will play SG almost exclusively, hopefully due to his brother manning the point
McCallum would be great too, but the Joseph brothers backcourt would be a lot of fun and the media would eat it up like candy.