Boston Celtics head coach Joe Mazzulla rejects the term 'defending champions,' viewing it as passive and counterproductive. Instead, he advocates for an aggressive, attack-focused mindset, drawing a comparison to the animal kingdom where the strongest animals are the most aggressive. Mazzulla's unconventional approach, including his use of animal metaphors, aims to motivate the team to pursue a new goal rather than rest on their laurels. After securing the Celtics' first title since 2008, the team is expected to be a top contender in the upcoming season, returning with key players like Jayson Tatum and Jrue Holiday. Embracing Mazzulla's philosophy, the Celtics aim to overcome the challenge of going back-to-back in a competitive NBA landscape.