Golden State Valkyries assistant coach Kasib Powell has emerged as a driving force behind the expansion team's early success, according to the report . A former G-League MVP and head coach of the Sioux Falls Skyforce , Powell's daily work with post players like Kiah Stokes and Laeticia Amihere has produced noticeable strides — most critically after starting center Iliana Rupert announced her pregnancy just before the season tipped off.

From G-League MVP to WNBA Assistant: Powell's Non-Traditional Path

Powell's journey to the Valkyries' bench is anything but conventional. After starring for the Skyforce in 2007 — averaging 22.2 points, 6.0 rebounds, and 3.0 assists per game and winning the league's MVP award, as the source notes — he played professionally in Serbia, Bosnia, Russia, and Greece. That international experience, combined with playing under legendary coach Bobby Knight at Texas Tech, gave him a dual perspective on player development and tough-love communication. According to the report, Powell retired in 2013 and immediately transitioned into coaching, first with a local AAU program in Sioux Falls, then as a Skyforce assistant in 2016, head coach in 2021, and a Miami Heat assistant in 2024 before joining the Valkyries under head coach Natalie Nakase.

The Iliana Rupert Void and Kiah Stokes' Resurgence

When the Valkyries announced that French sharpshooter Iliana Rupert was pregnant a day before the season started, backup center Kiah Stokes was thrust into the starter's role. The report credits Powell's investment in Stokes' daily development for her on-pace best season in over six years. stokes was originally brought in to back up Rupert, but Powell's work on her footwork, positioning, and confidence has turned her into a reliable frontcourt anchor. Forward Laeticia Amihere has also shown noticeable improvement under Powell's guidance,the source states.

A Bobby Knight Disciple with International Experience

Powell's coaching philosophy is shaped by two distinct influences: the discipline he learned from Bobby Knight at Texas Tech and the adaptability required during his stints in Serbia, Bosnia, Russia, and Greece. According to the report, his calm presence and ability to deliver tough messages without damaging relationships have made him a valuable asset to the Valkyries' staff.. The source quotes that Powell has “a great feel for how to deliver tough messages,” and that his growth as a coach has been significant — learning from both players and the evolving WNBA landscape.

What the Valkyries' Development Pipeline Suggests About Their Long-Term Plans

Powell's fingerprints on Golden State's post players signal a deliberate front-office strategy: build from the inside out.. Rather than relying solely on marquee free agents, the Valkyries are investing in a development culture that can lift role players into reliable starters.. The open question remains whether the frontcourt can sustain this level when other lineups are healthy, and how the Valkyries will complement Powell's work with additional veteran depth. Another unanswered point: what other development-focused hires the organization might make to replicate this success at other positions.