Our Philosophy
Cultivating Players Through Synergy
We don’t just build basketball players - we build people. Every session is guided by our core values: work hard, respect others, trust your team, and never lose sight of your purpose. At GSA, you’ll find a community that pushes you to grow, supports your goals, and celebrates every step of progress as an individual and as a team.
Through basketball we teach respect, teamwork, and grit.
Every training session is guided by these principles:
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Grind — Commit to the process.
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Respect — For yourself, your teammates, opponents, parents and the game.
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Intent — Train with purpose; play with clarity.
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Team — Communication, cohesion and collective synergy.
We believe success isn’t measured only by points or trophies — but by the grit and character you build through the game.
Meet Our Coaches
Leaders on and off the Court! Our coaches are more than trainers — they’re mentors and communicators who live the values of GSA and embody what we teach — grind with intent, lead with respect, and play with synergy!
Our Approach:
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Player-First Development: Every athlete is unique. We tailor training to bring out each player’s strengths and purpose.
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Basketball IQ & Awareness: We teach athletes to read the game, anticipate, and make smart, next step plays.
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Culture of Communication: Our coaches emphasise connection with your team, how we talk, move, and trust each other on the court. Communication is the key to success in any team!
Kelsen Lin
Head Coach Kelsen has 4–5 years of structured youth coaching experience, specialising in the development of athletes in U10 - U16. He has led multiple teams to championship titles in local competitions across the divisions. He has also coached teams in international youth tournaments in China and national tournaments such as Nunawading in Melbourne, gaining valuable exposure to diverse basketball environments and competitive systems. Kelsen is highly skilled in shooting mechanics, finishing techniques, on and off-ball scoring, and game-reading ability. His expertise in offensive structures, team movement systems, and multiple full-court pressing strategies provides a comprehensive teaching methodology. Under Kelsen's guidance, GSA's pedagogy emphasises strong fundamentals, intelligent decision-making, spatial awareness, and the development of high-level basketball IQ through in game application.
William Tam
Coach William is a former representative player of the Malaysia U14 National Youth Team, bringing both elite-level playing experience and youth coaching enthusiam. Currently still an active athlete, he competes in Sydney’s Division 1 competitions, maintaining a rigorous schedule of four high-level games per week along with intensive training sessions to ensure his skills and game awareness remain at top performance. In youth development, Coach William is known for his patience, empathy, strong communication skills and fun vibe. He excels at tailoring training to suit each athlete’s age, personality, and ability through his attention to detail. With the perspective of an active player, he provides precise technical guidance while helping players understand game rhythm, spacing, team work and decision-making. Coach William also serves as one of our key coaching staff in competitive events, leading teams in high-level competitions. His combination of playing experience and coaching insight allows him to bridge training and real-game application seamlessly, ensuring players grow effectively through both practice and competition.
Daisuke Seino
Coach Daisuke comes from the national youth development system in Japan and is recognised for his outstanding ball-handling and passes. As a guard with highly refined skills, he excels in precision, pace control, change-of-direction attacks, spatial manipulation, and high-level playmaking. Having competed in NBL1 and elite 3×3.EXE competitions, Coach Daisuke maintains an intensive daily training schedule, holding himself to high professional standards. He trains consistently with the ambition of competing in the Japan B.League, a clear testament to his strong goals, discipline, and long-term athletic vision. In coaching, Daisuke brings a unique blend of discipline, energy, and precision to every session. He fosters a fun and engaging environment, yet never compromises on the seriousness and focus required to grow. His guidance is detailed, intentional, and rooted in high expectations - pushing students to rise to their potential while still enjoying the process. With a coaching style that is both structured and spirited, he earns the respect of his students and inspires them to train with purpose whilst helping them develop ball control, passing decisions, and practical game understanding. Beyond being a technical coach, Coach Daisuke serves as a role model showing young athletes the importance of dedication, focus, and never giving up on their goals.
Yushan Hsieh
Coach Yushan, hails from Taiwan and has played basketball for over a decade. In 2022, she joined the WNBL1 Sydney Comets team, marking the beginning of her professional basketball journey. She later competed in Portugal’s professional women’s basketball league, followed by a move to China to play in the WCBA in 2024, gaining extensive multi-system professional experience across Asia and Europe. With her extensive experience, Coach Yushan brings exceptional game-reading ability, advanced finishing skills, transition concepts, and a deep understanding of training methodologies and tactical systems from different basketball systems. Yushan currently provides 1-on-1 private training and small-group skill sessions, focusing on ball-handling development, finishing variation, pace control, decision-making, and physicality. She is especially skilled at supporting young female athletes - helping many of them successfully earn spots on representative teams and perform confidently in trials and competitive environments. Her professional background, disciplined mindset, and passion for the sport makes her a strong role model for young players. Under her guidance, athletes gain confidence, advanced technical skills, and a deeper understanding of the game.