Dirk retired with a sense of fulfillment, having won a championship without joining a powerhouse team. Instead, the Mavericks slowly built a strong team until they achieved success. As for CP3, his ego might have played a role in him being ringless, and now that he's declining, retirement may not be far off for him.
He may not be in the discussion of the best players in NBA history, but being a non-American and winning a championship with his team is already a big success for him. Now, it's time for Luka to bring that success as Dirk continues to inspire the Dallas management and its roster. CP3 has just been unlucky. He had his chance when they faced the Bucks in the NBA Finals, but they fell short. After that, his struggles continued, including his last season with the Warriors, where he wasn't so healthy.