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.

  1. 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.
  2. 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.
  3. 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 176: Toughness Takes Practice | Lexi Demott, Galesburg Girls Basketball Head Coach
In Episode 176 of The Mental Mettle Podcast, I sit down with Lexi Demott, Head Girls Basketball Coach at Galesburg High School, to explore that question. Her approach goes beyond telling players to “be tougher.” She defines what toughness looks like, gives athletes tools to practice it, and brings those lessons into everyday conversations, drills, and competition.
National Coaches Day: How Coaches Support Athlete Mental Health
Discover how coaches can support athlete mental health, build resilience, and strengthen team culture with Mental Mettle’s coach development services.
Episode 175: "Excuses Satisfy Those Who Make Them" with Ron Spencer
In Episode 175 of The Mental Mettle Podcast, Coach Matt Thomann sits down with veteran Illinois basketball coach and athletic director Ron Spencer for a conversation about adversity, accountability, leadership, and the kind of mental toughness that matters far beyond the court.
Episode 174: Prepare Them. Build Their Confidence. Then Let Them Play. | Coach Jeremy Adolphson
For much of his coaching career, Jeremy Adolphson thought the answer was more conditioning: make athletes tired, make practice uncomfortable, and trust that the experience would toughen them up. After 26 years as a head football coach, his perspective has changed. Today, he believes athletes perform best when they have practiced the skills they need, understand their roles, and know how to respond when things go wrong. In Episode 174 of The Mental Mettle Podcast, I sit down with Jeremy to talk about that shift—and what it means for the way we coach.
Episode 173: Mental Toughness Doesn’t Just Happen | Raphael McMaster
In Episode 173 of The Mental Mettle Podcast, Coach Matt Thomann sits down with Raphael McMaster, founder and executive director of Indivisible Arts, mindset coach for the Mira Costa Basketball Team, and creator of the Fundamental Life Tools book and curriculum.
The “Yes, And” Mindset: How Athletes and Coaches Build Resilience Through Acceptance
Learn how the “Yes, And” mindset helps athletes, coaches, and teams respond to mistakes, adversity, and change with resilience, creativity, and confidence.