About Our Coaches

Head Baseball Coach | Infield & Hitting Specialist

Justin “Jet” Treviño is a dedicated college and youth baseball coach, former professional player, and former scout with a deep passion for developing the next generation of athletes.

A four-year starter at La Vernia High School, Coach Jet earned numerous accolades, including Offensive MVP, All-San Antonio Team, and Second Team All-State honors as a second baseman. He continued his career at the collegiate level, becoming a four-year starter and earning All-Conference honors at both Chabot College and Midland University.

Following college, Jet played professionally overseas in Australia before transitioning into coaching and scouting. His coaching journey began early, working alongside his father with youth select teams, and later expanded into high school and collegiate programs.

Jet served as Head JV Coach and Varsity Assistant at Central Catholic High School (TX) before returning to Midland University as a Graduate Assistant Coach while completing his master’s degree. During this time, he also worked as a scout for Perfect Game Baseball in Georgia and Florida.

He then moved to California, spending three years as the Head Assistant Coach at City College of San Francisco (CCSF) before returning home to Texas to continue mentoring student-athletes.

Coach Jet specializes in infield development, hitting, and baserunning, and is known for his high-energy, passionate coaching style. His philosophy centers on one simple belief:

“Bring a great attitude and give great effort—every single day.”

To Coach Jet, attitude and effort are the ultimate controllables—and the foundation of success both on and off the field.

Pitching Coach | Development & Mechanics Specialist

Coach Zay is a former collegiate pitcher with over 10 years of coaching and player-development experience. He played collegiately at Wharton County Junior College and Texas A&M University–Kingsville, where he helped the Javelinas reach the NCAA Division II World Series.

While pitching development is his specialty, Coach Zay takes a complete approach to developing baseball players. Along with pitching mechanics, velocity, arm care, strength and mobility, he works with athletes to improve their hitting, fielding, and overall baseball skills.

Coach Zay is excited to bring his experience and passion for player development to NextGen, helping athletes build confidence, improve their game, and prepare to compete at the next level.

Pitching Coach | Velocity & Mechanics Specialist

Coach Colton is a dedicated and passionate baseball instructor with a strong background in both athletic performance and pitching development. He was a multi-sport athlete and is recognized for competitiveness, work ethic, and a high-level understanding of throwing mechanics. Coach Colton is committed to helping athletes improve performance through a detail-driven, science-based coaching approach.

PLAYING CAREER

JOURDANTON HIGH SCHOOL

Multi-Sport Athlete (Baseball, Football, Golf, Track)

4 Time MVP Recipient

NORTHWESTERN COLLEGE

Pitcher

All-Conference Selection

Closer | 51 Strikeouts in 29.1 Innings

Helped Set School Strikeout Record

RANGER JUNIOR COLLEGE

Pitcher

COACHING SPECIALTIES

Pitching Mechanics

Velocity Development

Throwing Efficiency

Arm Care

Confidence Building

Mound Presence

COACHING PHILOSOPHY

“My coaching focuses on teaching athletes the biology, biomechanics, and physics behind throwing—not just what to do, but how and why it works. I believe the best pitchers are built through understanding, intent, and efficient movement. My goal is to help athletes develop cleaner mechanics, increase velocity, improve command, and compete with confidence on the mound.”

Pitching Coach

Coach Christian is a current collegiate pitcher with a passion for helping the next generation of ballplayers level up. I’ve had a ton of success working with pitchers to improve velocity, sharpen command, design better pitches, and take care of their arms. I bring experience, energy, and a personalized approach to every session. Whether you're working on velocity, control, or confidence, I tailor each lesson to help you reach your goals and take your game to the next level.

Accolades:
• Vandegrift High School Record Holder
 – ERA in a season: 0.58
 – Strikeouts in a season: 91
• NCAA Division I Student-Athlete at UTSA
• UTSA 2025 Super Regional Appearance
• UTSA 2025 Austin Regional Champions
• UTSA 2025 American Conference Champions
• 5 walks allowed in 30 innings pitched (2025 season)

Coaching Philosophy:
Pitching is about more than just throwing hard — it’s about moving well, staying healthy, and competing with confidence. I focus on helping each pitcher improve in the areas that matter most to them, like velocity, command, pitch design, and mindset. Every player is different, so I keep my approach personal and goal-driven. My job is to give you the tools, guidance, and feedback you need to get better every session and take your game to the next level.

Speed & Agility Coach

Donald “Mac” McElroy

• Retired honorably from the US Army in 2016

• 21 years training Army paratroopers and reconnaissance specialists for operations.

• 4 years as a Assistant Coach at La Vernia Junior High School

• Specializes in 6th grade Pre Athletics.

• Strength and Conditioning Coach for 7th and 8th grade off season athletes.

• Completed 12 full 26.2 mile marathons, two 50 mile ultra marathons.

Baseball Coach | Specializes in Strategic & Ontological Coaching

Welcome! I am Blake, a baseball coach with more than 16 years of experience in helping youth achieve their baseball goals. My focus is on creating personalized strategies for each kid, using ontological coaching and based on the study of the game and adapted to bring out the best potential of each player. I have had the privilege of working 14 years coaching Select Ball, which has increased my development and competition tools as a coach, along with teaching private lessons and training athletes guiding them towards the discovery of their maximum potential and overcoming obstacles. Currently I’m coaching for the 16U showcase team for the STX Mustangs out of San Antonio. I am committed to creating a safe and trusted space for my players to explore their challenges, discover their strengths and design an effective action plan. I am delighted to be part of the Next Generation Athletics Team, in La Vernia, Texas, my hometown!

Coach Blake.