We can use CJ as a shooting guard, but not the STARTING shooting guard. IMO he could do well in the 2nd unit with Korver and Gibson being the other two options on offense. If we could get him to unleash some of that GS mindset at times, he could provide a real boost to our bench offense. There was some talk of signing TJ Ford as backup PG some time ago (though I don't think Ford is all that great), and if that's the case then it's worth a shot.
That being said, I think he has really settled into his role as a PG, and might be more effective if the bench had another offensive option than Korver.
Something intriguing would be him and Hinrich in the back court together. But I doubt that'll ever happen.