Want to see something kinda cool? ("cool")
The post itself is fine, if you like Wins Produced, but it's the comments section that's pretty awesome. You get to see Mark Cuban, the Destroyer of Skips, discussing the usefulness of Wins Produced in evaluating players directly with the creators of the stat. There's a representative from basketball-reference.com (Neil Paine) in there too discussing with Cuban and the WP guys (Ari Caroline, Andres Alvarez, Chris Yeh, and David Berri).
Edit: I just saw that Clipperblog has a Clipper-centric analysis of the article itself, looking at where DJ fits into the whole thing. Andrew Han is awesome.