Everyone knows the NBA preseason doesn’t mean anything. And everyone is wrong. The preseason is supposed to be when coaches are evaluating their offensive and defensive schemes and players are familiarizing themselves with their teammates. Veterans sit out entire games. Journeymen on make-good deals fight, scratch and claw for minutes to show they deserve that final roster spot. Games are played in exotic faraway places like Taiwan and Rio de Janeiro and domestic outposts from Biloxi to Boise and Asheville to Jacksonville. Referees overuse