The Boston Celtics are focused on winning back-to-back championships after capturing their 18th title last season. Head coach Joe Mazzulla emphasizes moving past previous successes and failures to maintain internal motivation. Key players like Jayson Tatum and Jaylen Brown are using their offseason experiences, including Olympic snubs and personal setbacks, as motivation for the upcoming season. The Celtics have largely retained their core roster and added free agent Lonnie Walker IV, who is competing for a guaranteed contract. Ownership changes could pose a threat to the team’s financial stability and continuity. The team aims to build a new legacy and potentially become the NBA’s first repeat champions since the Golden State Warriors in 2017 and 2018.