The Boston Celtics are undergoing significant changes after their 18th NBA Championship win. This offseason, they traded star players Jrue Holiday and Kristaps Porzingis, losing key contributors. Backup center Luke Kornet has departed for the San Antonio Spurs, and veteran Al Horford is expected to leave as well, either to retire or join another team. Additionally, Drew Peterson, who spent two seasons with the Celtics, signed with the Charlotte Hornets. His move could open doors for him in a new environment with head coach Charles Lee.