Meet Our Coaches

 Our staff is incredible. They are passionate about teaching, encouraging and having FUN. 


Shari Mann and Jonathan Liddle | Owners

Shari and Jonathan started Authority Gymnastics in March of 2010. Founded on the philosophy of building stronger futures

Shari was a 1981 World Championship Team member and attended Arizona State University on an athletic scholarship where she achieved her Masters in Education. Shari is an esteemed coach, teaching some of the top athletes in the world, including Olympian Jaycee Phelps and World Championship Team member Sandy Woolsey. Shari is one of 20 certified judges at the International Brevet level, meaning she can judge internationally and Olympic level competitions. 

Jonathan began coaching in 1989 working at top clubs in the Flagstaff area. He was awarded the Arizona Uneven Bar Coach of the Year in 2001 and was a nominee for Arizona Coach of the Year in 2002. Jonathan is safety certified, meet director certified and a certified skill evaluator. 


Coach Mel |  Team Coach

Mel was raised in a small town on Lake Hartwell in Northeast Georgia. She spent most of her career competing at Upstate Gymnastics in South Carolina where she trained at Level 9. Mel enjoyed working hard in practice, even during strength and conditioning. Her favorite event was Vault, where she quickly became known as the Vault Queen because she never let anyone else take home the gold. After High School, Mel became a USAG Certified Judge (Level 7/8) who had the pleasure to travel all over the Southeast. In 2013, she took a small hiatus from her Gymnastics Career to pursue a graduate degree in Biological and Forensic Anthropology. Mel loved school so much she ended up moving to Columbia where she is currently a 4th year PhD Candidate interested the understanding variability in the timing and tempo of skeletal development, particularly during adolescence.


Coach taylor |  Team & League coach

Coach Sydney | League coach

Coach Allie | League coach & TNT

Coach Grace | League coach & Pre-school/kinder class