I also have all the confidence in the world Nerlens will develop. Case in point, look at his home and away splits. He is just a much better player at home surrounded by family. On the road with no vet presence to teach him how to live life as a vet playing on the road, he has stunk.
He is 20 years old and a rookie. He will end the year at somewhere around 8 PPG, 7 RPG, 2.25 BPG, 2 APG, 1.5 SPG. His shooting and offense will develop with age, experience, work and a better surrounding cast.
By age 25 I wouldn't put numbers like: 14ppg, 10rpg, 3 apg, 3.5 bpg, 2.5 spg, shooting 55%, 70% and having a DRTG of about 95, past him.