An NBA free throw coach
A post from the Freakonomics blog points to a New York Times article about the free throw coach hired by the Dallas Mavericks.
Apparently, coaching works well, so well that Dubner calls it an "arbitrage opportunity" and wonders why other teams haven't done likewise.
If you want to read the full NYT article, go now -- it doesn't take long for the Times to make their archives subscription-only.
My previous post on underhanded foul shooting is here.