This is an excerpt from an article written by Howard Bryant of ESPN.com:

Last week I wrote a column suggesting that Cleveland Cavaliers owner Dan Gilbert needs to take some responsibility for the current state of his franchise and his role in the events that led to LeBron James' departure instead of blaming James entirely for what has transpired with the Cavs over the last six months.

For the record, I am not particularly enamored of James, on or off the court. If he is the greatest physical talent to enter the game since Wilt Chamberlain, he is also a difficult offensive player to admire. He is a scorer, not a shooter, and yet he has an ongoing love affair with an erratic, unattractive jump shot. James has improved his shooting percentage since his rookie season but not necessarily his overall game -- not in the mold of Magic Johnson (who entered the league with a poor outside shot but left a competent 3-point shooter), Larry Bird (who developed a devastating low-post game late in his career), Michael Jordan or Kobe Bryant (both entered the NBA as dunkers but could soon score 30 points a night on jump shots).
He's very good, but there are arguments to make that LeBron James isn't as good as he could be.
He presents a mismatch for virtually every defender in the league, but despite a 6-foot-8, 260-pound frame he has no low post game and after nearly a decade in the league seems to have little interest in developing one.

On offense, he does not move without the ball and is not a threat unless he is initiating the action from the top of the key. When he is not handling the basketball, he often stands languid on the wing and does not draw defenses with movement or pressure them with positioning. In the midst of his eighth season in the league, James has never been a presence on the offensive or defensive boards, which is a must for a great player. His offensive and overall rebounding averages have dropped over the last three years -- 1.2 offensive rebounds per game for his career shouldn't wow anyone. In fact, Rajon Rondo, who is seven inches shorter and 100 pounds lighter, is developing into a better offensive rebounder than James - the numbers back that up -- and, for his size, Rondo is far more competent on the defensive end.

For all of his physical gifts, James has yet to find players who complement his game over the course of a full season and vice versa -- Allen Iverson-like.

Of all active players compared to James in their primes (of course, at 25, James might not yet be in his prime, depending on one's measure), I would select him for my team no higher than fifth, behind Bryant, Shaquille O'Neal, Tim Duncan and Dwyane Wade. At present, James isn't even the best player on his own team.
And yet, James is a hugely-significant figure in the NBA and sports world today for what he represents. He is the first mega-athlete to emerge in the 24/7 multimedia age that has been able to successfully navigate and capitalize on the shifting power dynamics that come with it. He is the perfect storm of 20th century battles: player freedom and control; free agency; the bypassing of the college game (those players were once called "hardship" cases); and the athlete as a corporation backed by a bigger one -- in LeBron's case, Nike.

Other modern athletes, including Tiger Woods and Jordan, have straddled varying elements of change during their times. No one has enjoyed the benefit of each of those developments in his prime as James has.