There was a time John Calipari made a push to hire Rajon Rondo to his staff at Kentucky, hoping to put him on the bench next to Tyler Ulis to get help from two of the most brilliant basketball minds in program history. He got Ulis, but the best Rondo could give was his ‘listening ear’ as a mentor to the Wildcats a season ago. The 16-year pro and four-time All-Star hadn’t officially retired as a player and was focused on finishing his degree in Lexington, non-committal about getting into coaching just yet. He’d help, but not in an official capacity. “I can’t wait to see them, can’t wait to get …