Former Suns legend Steve Nash is executive producer of the show, which explores the relationship that unfolds between two athletes at different points of their careers.”I really proud of Rookie/Vet, and working with The Players Tribune to produce the series has been really fun,” Nash said. “I played in the NBA for nearly 20 years and know how the experience and wisdom of a veteran can lead to a more balanced approach to life in the league. The relationship between…