Kiah may have some problems on offense, but I have never noticed that lack of conditioning is among them. I know she doesn't play 30 minutes a game, but she never seems tired, winded, or slow up the court.
At this point, blocks and rebounds are the game that Geno can count on getting from her, and she has recently been extremely consistent in delivering that. As I said elsewhere, while UConn's offense may take a hit when she replaces Stef, the overall defense is (if anything) improved.
Stanford will be a good test. If, during her minutes, she guards Chiney somewhat successfully and outrebounds Chiney and Ruef, she will be doing everything that can be asked of her right now, and she will contribute a lot towards UConn's chances for victory.