Very few NBA superstars arrive from the college campus as complete players. There is a learning curve, and even the greatest of all time take time to develop.
It's not often you find someone like Earvin Magic Johnson. He was not only the league's Rookie of the Year in 1979-80, but he led the Lakers to an NBA title and was named Finals MVP, all at the tender age of 20.
In most cases, young superstars establish a definitive aspect of their game early on and then spend the next three to five years trying to take their games to the next level. Some succeed, many do not.
There's a handful of very talented NBA stars who are quickly establishing themselves around the league. Players like Kyrie Irving and Jrue Holiday are making noise as point guards who control the tempo of a game and score with great frequency. They are the superstars of the future.
And then there are players who have arrived as superstars but still lack certain aspects to their game, such as a higher shooting percentage, better rebounding or assists.
Here are five superstars who still need to grow their game to evolve.