The Boston Celtics are coming off their record 18th Championship season and while a lot of focus has been on the growth and relationship between Jayson Tatum and Jaylen Brown, the development of the draft picks and bench players has been one of the biggest keys to the Celtics success. Instead of buying different pieces and trying to force them to fit together, the Celtics players have been able to grow and learn how to play with each other from the beginning of their time in the league. This is a team that went through Finals losses and Conference Final letdowns over and over to be able to galvanize as they have and become the best team in the league.