AGSA Staff Members

With a 100% USAG Safety Certified, and background checked staff, AGSA offers a premium gymnastics education from former athletes who understand the mechanics of movement.

Vladimir Vladev


With over 35+ international medals, Vladimir Vladev is a 1989 Master of Sport and International Master of Sport since 1993. Additionally, he is the 2010 & 2014 USAG JO Coach of the Year, and the 2015, 2018, 2019, 2021 USAG Elite Coach of the Year.  Since 2016 he has worked as National Team Coaching Staff  and master of sport with USA Gymnastics. He serves as Region 3 Chair for the USA Gymnastics Developmental Program. Coaching numerous national, and international medalists, he is one of the most decorated coaches in the United States. In fact, Vladimir was inducted into the USA Gymnastics Hall of Fame in August of 2023. This is the top recognition achievable within the United States. 

Jennifer Stone

AGSA Business Manager

acrobatics team manager

Jennifer comes to AGSA with over 17 years of manager experience with a background in education. She has been involved exclusively in the gymnastics/acrobatics world for the last 15 years. Jennifer is the president of the Texas State Acrobatics Board for the last 2 years and served as secretary for 5 years. She is a board member for the USA Gymnastics Growth and Development Committee and on the Vegas Acro Cup Organizing Committee. Jennifer has her certification in judging as well as meet directing. She received the Region 3 Acrobatics Star Service Award in 2017 and 2022 for her dedication to the sport of acrobatics. She also received the Distinguished Service Award from the Gymnastics Association of Texas in 2022.  Jennifer passion is acrobatics and she continues to help grow acrobatics in the US and around the World.


Michael Hassey

Acrobatics Head Coach 

Acrobatics Program Director

Over 18  years of coaching experience in multiple fields from dance, gymnastics, cheer, and martial arts. Coach Michael was the 2015 Region 3 Rookie Coach of the Year, 2021 Region 3 Elite Coach of the Year and brings an array of skill sets to the AGSA Acrobatics Team as the head coach and program director. 

Josh McCoy

REcreational Program Director

Coach Josh comes to AGSA with an array of knowledge in skills and years in both martial arts, gymnastics and tumbling. Josh has done a fantastic job in streamlining our recreational classes so the athletes are receiving the best opportunities to grow in gymnastics and tumbling.

Coach Josh will be leaving us for a grand adventure in Hawaii where he will serve as head coach. Coach Josh’s last day will be November 4th and he will be missed immensely but we wish him the best of luck!

Kaeylarae brogden

Acrobatics Team Coach

Morning Rec Coach

Kaeyla is a wonderful asset to have here at AGSA. She comes to us with 18 years of gymnastic and acrobatic experience. She was the 2018 National Champion, served on National Team for two years and earned the gold medal at the 2019 Pan American Championships. Coach Kaeyla is our in house choreographer for our acrobatics team and has traveled internationally with our team where they have brought home many international titles with the latest travel being Budapest. 

Brianna Rosier

Gymnastics/Tumbling Instructor

Head Coach –  Performance Team

Brianna brings 16 years of gymnastics and acrobatics knowledge and experience to AGSA. She has won many titles throughout her acrobatics career and advanced up to senior elite. Brianna is dedicated to teaching the best foundation in gymnastics/tumbling/acrobatics to all levels to help them succeed. 





Trinity Knapp


Trinity has over 14 years of competitive artistic and acrobatic gymnastics experience. Trinity retired from gymnastics in 2023 as an elite level athlete. Trinity enjoys coaching as a way to continue doing what she loves and share her knowledge and experiences of the sport of gymnastics with the next generation. 

Eva Escobar


Gymnastics has been a part of Eva’s life for 13+ years. Eva was an artistic gymnast for 7 years then transitioned to acrobatic gymnastics for the last 6+ years. Eva has traveled all over the United States and Canada competing for AGSA as an elite level athlete. She is also currently traveling to Australia to participate in cirque du soleil camps and shows.