He plays 22 minutes a game and has started 48 games, despite the fact that he has a PER of 7.5 and has contributed 0.01 win shares per 48 minutes (meaning he is roughly 1/30th of the player that LeBron James is).
How can any organization play such a shitty player so many minutes? Well, it has happened many times before. Woody Saulsbury and Jack McMahon eons ago had TWO such seasons where they were terrible yet played a lot. Trenton Hassell enjoyed some success in Minnesota, but his play pre- and post-Wolves left a lot to be desired, yet he still played.
It appears that teams have become a lot more knowledgeable and do not play unproductive guys 1,000 minutes anymore. Only a handful of guys have had a Wes-like season over the past several years and yet played any appreciable amount.