December 4, 2020 3:43 pm Brad Stevens discusses adding Evan Turner to Celtics coaching staff Brad Stevens discusses how adding Evan Turner to the Celtics coaching staff will benefit the young players. Celtics Videos 1:04 Kristaps Porzingis talks ‘unbelievable' energy in Boston on parade day 0:36 Jayson Tatum talks rare chemistry with Celtics core 0:37 Derrick White details extensive dental work after injury in Game 5 0:31 Jordan Walsh describes Joe Mazzulla's ‘one care to give' philosophy 2:16 HIGHLIGHTS: Celtics can't hold on, drop final preseason game 119-118