Mayo confirmed that the 6-foot-6, 205-pounder, who averaged 23.5 points, 10 rebounds and 4.8 assists this season, has not signed with an agent.
He said he and Miles, who also scored 13 points in the McDonalds All-American Game last month and 16 points at the Jordan Capital Classic this month, are staying in touch with the Texas coaching staff.
"Hes just testing the waters so to speak," Mayo said. "Nothing is definite."
The last day to declare for the draft is May 14 and the deadline to withdraw is June 21. So far, 59 players, including four other high schoolers, have declared for the June 28 draft and many more are expected to do so before next months deadline.
Mayo said he has been told that Miles could be chosen anywhere from 15th overall to the end of the first round if he elects to stay in the NBA draft. Miles draft stock, however, could rise or fall based on the individual workouts he will participate in for interested NBA teams in the weeks to come, he said.
"The beauty is in the eye of the beholder," Mayo said. "Theres a lot of folks who love the way he plays. He sees the floor well and is unselfish. He just does a lot of great things, plus hes real mature. He handles himself well. He has high morals and values."
Still, Mayo said he is unsure whether Miles will be playing in the NBA or at Texas next season.
"My position has always been that most 18-year-olds need to mature socially, spiritually, mentality and physically," he said. " But at some point, you and I will be watching him in the NBA."
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