Gay people have made strides in many sectors of American professional life. An openly gay man runs Apple, presides as the governor of Colorado, and an open lesbian runs a Fortune 500 company. But in the highest reaches of men’s basketball, gay people are almost invisible.
In 2011, 58-year-old Phoenix Suns CEO Rick Welts came out, becoming the league’s first openly gay executive. A longtime marketing whiz who hatched the idea for an All-Star…