The Boston Celtics made it clear that they have a core they believe in. They have held together this core as much as possible, and are giving them an opportunity to compete for a championship this season, while utterly dominating the East.
With the pieces they have, the Celtics are ready to contend right now, while having the brightest future in the NBA. They have embraced probably the best depth in the NBA, and should be confident that this core can be relevant and contending for many years.
Taking that into account, this season could change everything.