It's inevitable. No athlete can be a superstar forever.
Since winning a championship with the Miami Heat, Shaquille O'Neal has never regained his dominance and swagger. Kevin Garnett can no longer carry a team by himself, like he did for so long with the Minnesota Timberwolves.
In 2010, some more household names will join the ranks of the declining stars.
Players can become worse for a variety of reasons. In the case of O'Neal and Garnett, it was simply an age issue. Traditionally, NBA players hit their prime around 28 years old, but once they turn 30, their stardom starts to fade.
For other players, changing personnel can be a challenge. Take someone like Shawn Marion, for example. With Steve Nash in a run-and-gun system, Marion could use his athleticism to thrive. Put him on another team, and his productivity drops significantly.
Or a team could just add better players and greater depth to reduce a star's effectiveness (hint, hint, Miami Thrice).
Regardless of how, here are 10 quality NBA players who should see a decrease in their production this season.