David Bieler was hired to join the Sun Devil Volleyball staff in March 2025.
Bieler was most recently the technical director and director of operations for Rutgers. He also was a performance analyst for the 2025 Women's National Team Open Program.
Prior to his stint in New Jersey, he spent time as a volunteer assistant coach at UMBC where he was a part of the 2023 America East Co-Coaching Staff of the Year. As a member of the staff, the Retrievers captured the America East regular season title and finished the season 8-2 in conference play and 15-7 overall, leading the league in per-set averages for points, assists and kills. In other facets of the volleyball world, Bieler was with the PREVAIL Volleyball Club as the head coach of the 15U boys team, earning an AAU National Bid in the summer of 2023.
Bieler graduated from Pittsburgh in June 2022 with a degree in computer science. While there, he was also a manager for the Panther's women's volleyball program and a member of the Pittsburgh men's volleyball club team that took third place at the 2021 Open Nationals. He also previously played with the PREVAIL Volleyball Club, reaching fifth at the 2018 AAU National Championship.