There's no such thing as a perfect NBA team. No matter how many massive free-agent signings, slick draft picks or blockbuster trades your favorite squad makes, there's always room for improvement.
For example, the New Orleans Pelicans could use a quality bruiser to play alongside Anthony Davis on the front line. That's a basic, positional need.
In other cases, upgrades are necessary in subtler ways. Take the New York Knicks, whose reliance on isolation ball resulted in the lowest percentage of assisted baskets in the NBA last year. That's a team that could stand to improve its ball movement.
Sometimes, help can come from an outside source via a free-agent acquisition. But just about every useful free agent has already found a home, so organic growth, strategic tweaks and the ability to solve problems from within will be critical, too.
There's still plenty of time before the 2013-14 season kicks off, so NBA teams will have ample opportunities to address their various deficiencies. That's a good thing, because a good chain is only as strong as its weakest link...or something like that.