The National Basketball Association has, in recent years, been a league that's been ahead of the curve when it comes to responding to discrimination. When former Clippers owner Donald Sterling was taped uttering racist remarks, NBA Commissioner Adam Silver banned him from the league for life. It was the first of the four major professional sports leagues to have an openly gay player on one of its teams when Jason Collins played for the Brooklyn Nets in 2013. It also became the first league to have a full-time female coach when the San Antonio Spurs named Becky Hammon one of...