Boston Celtics assistant coaches Tony Dobbins and Tyler Lashbrook are in the mix for NBA head coach positions next season. Dobbins has been with the Celtics since 2017 and is one of Joe Mazzulla's four front-of-bench assistant coaches, while Lashbrook has been with the team since 2023 and works primarily on the offensive (and player development) side. Dobbins has been a Celtics assistant coach since 2017, beginning in the film room and rising through the ranks over the past decade. He was the Celtics' Summer League head coach in 2023. This past year, he was the assistant coach who worked most closely with Jayson Tatum as he rehabbed his Achilles injury. Jayson Tatum praised Dobbins for his selflessness and engagement during his rehab. Before that, Dobbins worked most closely as Jaylen Brown's lead coach. He's widely known as one of the most patient and even-keeled people on the Celtics' sidelines. Marc Stein reported on Thursday that the Mavericks are expected to interview a dozen or so prospects to replace Jason Kidd as head coach. In addition to Dobbins, that list includes Minnesota Timberwolves assistant Micah Nori, Houston Rockets assistant Royal Ivey, Toronto Raptors assistant Jama Mahlalela, and Miami consultant Noah LaRoche. Lashbrook is one of the lead voices in the Celtics' offense team and a key part of the team's player development. He was the head coach of the Maine Celtics during the 2024-2025 season before returning to the parent club this year. Before joining the Celtics in 2023, Lashbrook was with the Philadelphia 76ers since 2014. He began as an intern in the film room and worked his way to becoming a video coordinator and player development coach. Lashbrook was a player development coach in Boston during the championship season before becoming a head coach in the G League for the first time last year. Lashbrook is reportedly one of three finalists for the Trail Blazers head coach position, a list that also includes interim head coach Tiago Splitter and longtime Minnesota Timberwolves assistant