I still see Griffin as way ahead of Kaylon. When it comes to footwork, hands, decisions, and effectiveness, I don't even see a contest right now. Griffin is playing intelligently, and that is Sherri's game.
Kaylon looked good against rather suspect opposition. But, she also got tied up, lost the ball, line drived shots, and lacked the overall sense of the position. She has some learning to do. It's more than just rust. I think Kaylon was just learning the position when she was injured. Now, she has to learn the position and how it fits with the team.
She's a better rebounder than Griffin. But, I see Griffin as having the lead in every other aspect of the game. I expect Kaylon to play a lot. I don't know if she can catch Griffin this year. Griffin seems to know the position this year. It's one thing to look exciting. It is quite another to fit into a role the way you are supposed to. Right now, I think Griffin is a lot closer to what Sherri wants at center.