Despite showing some promise early in his career, Walker's role took a backward step last season, finishing as the 283rd-ranked player in standard leagues. He averaged just 9.7 points and 1.8 three-pointers in 17.4 minutes per night, numbers that he could struggle to replicate given he is now playing for the reigning champion Celtics. Walker will battle Sam Hauser and Payton Pritchard for backup minutes, who've both carved out niche bench roles and played critical minutes last season. At best, Walker should be viewed as a potential three-point streaming option in deeper formats only when those ahead of him miss time due to injury.