I just finished the book Stumbling on Wins by David Berri and Martin Schmidt. It was a fascinating book and brought up a lot of excellent points, but before mentioning those I was wondering where I could find a website that tracks the wins produced statistic that they measure in the book. I'm surprised that the statistic isn't employed more frequently on this site, actually; it's proven to be significantly more accurate than other metrics.
A Wizards related nugget: the authors calculated which NBA coaches, if any, actually improve the performance of their players. Number 6 on the list? Flip Saunders!