Can LeBron get any better? 30% of people say no
I'm on the record saying that I don't like LeBron, and I've always been critical of him on an all-time-great scale. Since his dominant Game 6 performance in Boston facing elimination and his MVP performance in the NBA FInals, I have no criticism of him at all - a lack of performances like those is why I had issues with him in the past. I now reluctantly say that LeBron is a hair ahead of Kevin Durant as the NBA's best player (due to the result of the Finals), and I haven't been shy about saying that LeBron is possibly the most talented player ever. However, this in no way means that he doesn't have any room to improve.
First of all, LeBron didn't even match his career bests in points, assists, steals, blocks, free throw percentage, or turnovers. How could he not get any better if he isn't even as good (at certain things) as he once was? Also, his free throw percentage last season was 77.1%, less than 2% above the league average of 75.2%. Free throws are, in most cases, simply a matter of practice. The more you take, the more you'll make. To say that someone who is average from the free throw line is as good as can be is ridiculous.
In addition, no one in the history of the NBA was so good to the point where he couldn't possibly improve. There has never been a person who hit every shot, made every pass, played perfect defense on every play, got every rebound in his area, never turned the ball over, etc. Every player, no matter how great his season was, could have done a little more. No player has ever gone through a mistake free season. Tyson Chandler, who lead the NBA in field goal percentage last year with an astounding 67.9% even could have done better. I watched almost every Knicks game last year, and there were way more than a handful of times when Chandler was under the basket and couldn't get the ball in the hoop - at least on his first try.