Kevin Olle has had 3 players drafted to the NBA; 1 first round pick and 2 second round picks.
John Calipari has had 28 players drafted since arriving at UK; 21 first round picks (14 lottery picks and 3 #1 overall picks) and 7 second round picks.
So counting his 39 commitments to UK that have been eligible to enter the draft (and subtracting the 4 guys drafted who he did not recruit but coached) 24/39 of his guys have gone on to be drafted. 61.5%. Its a pretty powerful pitch to tell an 18 year old that there's a 3 in 5 chance of becoming a millionaire if he were to play for UK.
All in all, I don't think NBA and player development are what we should be using to present UConn as a more attractive destination than UK. If getting to the NBA is priority #1 for Hami, he will choose Kentucky, and you really can't fault him for it.