It is just going to be too hard for Kentucky to ever win another National Championship with so many players always leaving early. The 2 years Kentucky won a National Championship and started 38-0 and should have won a National Championship were the 2 years when major players came back from the previous season.
2012 you had so many guys come back to add to Davis, MKG and in 2014 you had the Harrison twins come back you had WCS come back ect and others. It is just impossible to ask for so many new incoming players with so many great players leaving early ever year to win National Championships.