From what I've heard because I followed closely the Cousins recruitment on Memphis' board was that Cousins chose Memphis because it was the best fit for him academically and they had programs in place that would help tutor him.
I doubt John Wall suddenly picks UK when he hasnt considered them really up to this point.
This reminds me of the situation with Terrelle Pryor basically down to Ohio State & Penn State when Rich Rodriguez comes to Michigan and has the perfect offense for him set up there.
I think the lack of familiarity with the program and his role in it compared to his role at Memphis.Considering at Kentucky he would be the 3rd option and have to defer to Meeks and Patterson.
Xavier Henry is not leaving unless his older brother CJ transfers.
Nolan Dennis sealed his fate after signing his LOI before any other Memphis recruit did, he closed his recruitment long ago and its too late to try to open it back up.