If anybody knows basketball, it's NBA coaches — especially those who've been in the league longer than most players have even been alive. Case in point, Indiana Pacers head coach Rick Carlisle.
The 65-year-old has been around the NBA his entire adult life. He played for five years in the 1980s and then immediately jumped into a coaching career. He's been a head coach since 2001 for three different franchises with the Dallas Mavericks, Detroit Pistons and Pacers twice.
Carlisle is known for coaching the Mavericks to their sole franchise championship in 2011 behind Dirk Nowitzki.