I am not sure that you con conclude that Kemba "looks fine" based on that game yesterday but I am not concerned at all about chemistry or personalities or whatever. They did fine together last year and they will be fine this season. I have not seen anything from Kemba ever that would make me think he wouldn't do whatever role he needs to in order to help the team.
Now I am also not opposed to trading him, I just don't think we can get a fair trade value for him right now. The value that he will bring the team staying on the team is better than what I feel we would be able to get back in a trade, so why trade him?
With Kemba, our roster is not well balanced. We end up with excess at PG (Walker, Teague, Pritchard, Waters, and to some extent Smart) but trying to trade Walker is not going to be the answer to that.