Julius Randle has built a good relationship with University of Kentucky coach John Calipari, his mother said, and the five-star power forward from Texas called the coach for some pointers last month. Randle’s mother, Carolyn Kyles, recalled a recent conversation she had with Calipari, who told her about a time Randle called him to ask how the coach thought he was faring during the July evaluation period. “He said, ‘Hey, Coach, how did I look? What can I do better?’” Kyles said on Thursday morning. “And one of the things he told him was, stop catching the ball with one hand. Catch it with two hands. And (Calipari) said it was amazing, that the very next game, he did that.” Kyles said Randle also had called Calipari and asked him about a way of coming off the dribble, and Calipari suggested an improvement that Randle made the next time out.