Jaylen Brown is this generation’s Al Jefferson for the Celtics

The ascension of Jaylen Brown has been one of the biggest storylines of the past few seasons for the Boston Celtics.

BOSTON, MASSACHUSETTS — DECEMBER 09: Tristan Thompson (13) of Cleveland Cavaliers in action against Jaylen Brown (7) of Boston Celtics during an NBA match between Cleveland Cavaliers and Boston Celtics at TD Garden on December 09, 2019 in Boston, Massachusetts. (Photo by Tayfun Coskun/Anadolu Agency via Getty Images)

Culminating in this past season, where the 24-year-old averaged 24.7 points on 48.4/39.7/76.4 shooting splits en route to his first All-Star selection. On top of that, he also saw career-highs in usage rate (29.7), value over replacement…