Athlete Development Starts Here
Athlete Development Club helps athletes build strength, speed, movement, and confidence through structured training.
We focus on long-term development, not random workouts, giving athletes the tools they need to perform at a higher level.
Private training. Strength & speed development. Seasonal programs.
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Our Story
ADC began by listening to and their families, identifying the gaps in training and what players truly needed.
Our commitment is to provide not just more repetitions, but better repetitions, enhanced coaching, and intentional development.
This approach has evolved into a structured training system centered on strength, speed, movement, and performance. Today, ADC collaborates with athletes from various sports, helping them lay the foundation necessary to compete at the highest level.
Meet The Coaches
Every ADC coach brings real playing and coaching experience to the gym. We don't hire trainers who only know the science — we hire coaches who've lived the game and know what it takes to compete.
Coach Steve Rosenberg
Head Coach & Founder
Steve Rosenberg is the founder of Athlete Development Club and a strength, speed, and performance coach with nearly a decade of experience.
He has worked with professional, collegiate, and youth athletes, helping them build the physical foundation needed to perform at higher levels.
At ADC, Steve leads the training philosophy, focusing on structured development in strength, speed, and movement while helping athletes build confidence, discipline, and consistency through their training.
Coach Kelly Severini
Coach
Kelly Severini is a former NCAA Division I athlete who competed at the University of Hartford, Michigan State, and the University at Buffalo. At Michigan State, she was part of two Big Ten Championship teams during undefeated conference seasons. She also played professionally in Italy. She will also be joining Binghamton University as an Assistant Women’s Soccer Coach.
Kelly brings both high-level playing and coaching experience, currently working within club and state-level programs. At ADC, she focuses on technical development, movement, and helping athletes improve their decision-making and confidence on the ball.
Coach Mark Dutton
Coach
Mark Dutton is an experienced coach with over 35 years in youth soccer, originally from England where he began his coaching career before moving to the United States. He has played a key role in developing players and programs across New Jersey for decades.He is also involved in multiple coaching and leadership roles across New Jersey, including club, academy, and development programs.
Mark brings a wealth of experience in player development, leadership, and coaching education. At ADC, he serves as a coach and mentor, helping guide athletes and support the overall training environment.
Coach Allie Post
Coach
Allie Post is a collegiate soccer player at Rutgers University, where she has been a consistent contributor throughout her career and was named Team Captain in 2025. She had a breakout 2024 season, recording a career-high in goals and assists.
Allie brings high-level playing experience and a strong understanding of the game. At ADC, she works with athletes on technical development, movement, and building confidence in competitive environments.
Allie Lowrey
Coach
Allie Lowrey is a former Division I athlete who played at Rutgers University and Texas A&M before continuing her career professionally in Iceland with IBV FC where she recently finished the season with over 30 goals.
She brings experience from the college and professional levels, helping athletes understand what it takes to progress in the game. At ADC, she focuses on development, confidence, and guiding players both on and off the field.
Testimonials
