Episode 131: Way of the Warrior: Leadership Coaching with SGT. Brett Miller

Episode 131 of The Mental Mettle Podcast goes straight to the heart of what real leadership looks like in today’s sports world. In “Way of the Warrior: Leadership Coaching with SGT. Brett Miller,” Coach Matt Thomann sits down with Air National Guard Sergeant, Caterpillar auditor, youth coach, and Way of the Warrior Leadership Academy founder, Brett Miller, to unpack how athletes can become leaders who are ready for life—not just the next game.
From Locker Room to Flight Line: Leadership Everywhere
Brett’s story weaves together three worlds—military, corporate, and youth sports. As a long-time Air National Guard member, global audit team lead at Caterpillar, and club soccer coach, he has seen the same leadership truths show up in every environment: people follow example more than slogans, culture outlives any game plan, and character matters more than stats. His Way of the Warrior Leadership Academy grew out of this cross-pollination, giving student-athletes a place to learn the skills that rarely show up on a stat sheet but matter everywhere else—resilience, accountability, communication, and presence.
Lead Yourself First: The 10 Controllables
One of Brett’s core messages is simple and challenging: before you lead teammates, you must lead yourself. Way of the Warrior teaches athletes a set of “10 controllables” that require zero talent—things like effort, attitude, body language, punctuality, work ethic, energy, coachability, and how you treat others. These are fully within an athlete’s control and eventually separate those who plateau on raw ability from those who grow into consistent, dependable leaders on and off the field.
Culture Beats Tactics Every Time
Brett and Coach Thomann both emphasize that schemes and systems matter far less than culture. A team obsessed with one bad loss from “two years ago” is stuck in the past, while a healthy culture keeps attention on where the group is now, where it wants to go, and what’s required today to get there. Athletes and coaches are encouraged to stop fixating on referees, weather, or past records—factors they can’t control—and instead invest energy into how they respond, support teammates, and uphold standards.
Modeling Over Messaging
Athletes are always watching their coaches and captains. Brett has seen how a coach screaming at officials doesn’t just vent frustration—it teaches players to do the same and pulls the whole group into a victim mindset. In contrast, leaders who manage their body language, own mistakes, and treat opponents and officials with respect model the composure and accountability they claim to value. The episode challenges coaches and captains to recognize that their behavior is the loudest form of “culture talk” their team will ever hear.
Confidence That Lasts: Effort, Evidence, and Self‑Trust
Confidence, Brett notes, is “evidence-based”: athletes feel more confident when they can point to hard work, repetition, and growth, not just flashes of success. He and Coach Thomann push back against the fear that recognizing your strengths will automatically turn you arrogant. There is a huge gap between never giving yourself credit and becoming cocky. By noticing small wins, acknowledging progress, and anchoring confidence in controllables like preparation, effort, and resilience, athletes build a steadier form of belief that doesn’t collapse after one bad game.
Purposeful Adversity: Go Find a Harder Gym
Another major theme is purposeful adversity. Brett and Coach Thomann both argue that athletes should intentionally seek harder environments: tougher opponents, more demanding training partners, and settings where they are no longer “the best in the gym”. Without challenge, growth stalls. With healthy adversity—and tools to navigate it—athletes develop humility, a growth mindset, and the ability to bounce back from failure rather than avoid it.
Inside Captain’s Class: Three Nightly Evolutions
Way of the Warrior’s flagship program, Captain’s Class, is built as a five-day, three-hour-per-night leadership camp that feels part military, part lab, and part improv stage.
- Evolution 1: Presence, Standards, and Stretching Limits
Athletes are organized into “flights,” practice marching, complete PT as a group, and are inspected on details like dress, setup, and readiness—mirroring the military’s focus on attention to detail and shared standards. There is no yelling; the aim is to push athletes just beyond where they say they’re “done” and let peers support one another, helping them discover they’re capable of more than they thought. - Evolution 2: Leadership & Culture Conversations
The middle hour dives into mindset and leadership topics like the 10 controllables, leading yourself, and what it means to be a captain or senior leader even without a band on your arm. Because athletes come from different sports and schools—including girls playing on boys’ teams—they learn from each other’s real experiences with confidence, belonging, and voice. - Evolution 3: Improv, Teach‑Backs, and Team Challenges
The final hour uses team-building, improv, and “Teachback Tuesday” to stretch communication and presence. Athletes must teach the group something—anything—from place-kicking and goalkeeping angles to crocheting bracelets or basic sign language. Getting up in front of peers and adults, and realizing they already know something valuable, becomes a powerful confidence builder. Other nights use games like modified handball to teach advocacy, expectation-setting, and asking questions when rules or standards aren’t clear.
Creating Safe Spaces for Real Conversations
One of the Academy’s strengths is the space it creates for honest dialogue. Through its “I Warrior Next Level Athlete” mentors—former college and pro athletes—Brett brings in real-world topics that often go unaddressed, such as eating disorders in women’s sports and pressures around body image and performance. Hearing these issues raised by a respected peer, not just an adult, opens the door for athletes to speak up, realize they’re not alone, and begin to develop healthier perspectives on fueling, performance, and self-worth.
Supporting Injured Athletes and Identity Struggles
The conversation also touches on the mental toll of injury. Brett has seen athletes, including his own daughter, face repeated season-ending setbacks and wrestle with questions like, “Who am I if I can’t play?”. Isolation from the team, loss of role, and disrupted identity can spiral into deeper struggles. While still an evolving idea, Brett describes his desire to create regular spaces—like group calls—for injured athletes to share updates, encourage each other, and process the emotional side of rehab with people who truly understand.
Nonprofit Reality: Imposter Syndrome and “Yes, and”
Way of the Warrior’s journey hasn’t been smooth. Brett openly shares about launching camps that drew zero sign-ups and the wave of imposter syndrome that followed. Instead of quitting, he leaned into a “Yes, and” mindset borrowed from improv: accept the reality (no registrations) and then ask, “And what can we build from here?” That framing led to expanding beyond camps into one-on-one coaching, team workshops, coach education, and speaking engagements, including leadership talks for college fellows programs. It’s a practical model of resilience—pivoting without abandoning purpose.
Why This Conversation Matters for Coaches and Parents
This episode is a must-listen for anyone responsible for shaping young athletes. It highlights:
- How quickly talent can be neutralized by weak character or poor habits.
- Why every player—not just captains—must see themself as a leader, starting with self-leadership.
- How unchecked pressure, social media, and identity tied solely to sport amplify mental health challenges.
- The need for intentional, structured spaces where athletes can practice leadership, vulnerability, and communication—not just skills and schemes.
Coaches, parents, and athletes who believe sport should prepare kids for life—not just highlight reels—will find in SGT. Brett Miller’s work a practical, tested roadmap for building warriors of character.
To dive deeper into these ideas, listen to Episode 131 of The Mental Mettle Podcast. For coaching, workshops, or support in building mentally tough, resilient athletes and cultures, connect with Coach Matt Thomann at coachthomann@gmail.com or visit www.mentalmettlelifecoaching.com.
Are you ready to forge your mettle?
More From Mental Mettle

Episode 130: Happy Thanks"taking"

The Power of Positive Team Culture: How Winning Environments Shape Student-Athletes for Life

Episode 129: A Coach Looks at 50

Episode 128: Basketballs and Bibles with Robo Kreps

Episode 127: From Courts to Fields: 30 Years of Klay Wheeler's Coaching Insights
