Who is Mitch Johnson? What to know about Spurs' coach for NBA Finals

The San Antonio Spurs are back in the NBA Finals. It may not seem like it, but it's been over a decade since their last Finals appearance in 2014.Back then, the team looked a lot different. Kawhi Leonard, Tim Duncan, Tony Parker and Manu Ginobili were the names to know. Now, it's young guns like Stephon Castle, Dylan Harper, Devin Vassell, and, of course, Victor Wembanyama.However, the players aren't the only thing that's changed in San Antonio. The coaching staff has also shifted. While legenda