More likely to occur: Female NBA head coach or high profile openly gay player?

San Antonio Spurs head coach Gregg Popovich addressed the progress that is being made in the NBA. On naming former WNBA star and current Spurs assistant coach Becky Hammon as the first woman head coach in summer league, he was optimistic about women being hired as NBA head coaches in the future. He also said that as the progressive culture in the locker rooms grows, an openly gay player on the team is also going to happen. Which do you think is going to happen first?