Chris Gatling, Mavericks / Nets
Chris Gatling was an All-Star in 1996-1997, thanks to a 19 point per game average to go with nearly eight rebounds per game. Gatling failed to exceed 12 points per game in another season in his career, though.
His career lasted a decade, averaging just over 10 points per game, which is nothing to be ashamed of. But his decline in the season following his All-Star campaign led to him being traded from the Nets to the Milwaukee Bucks.