We leverage decades of high-level leadership experience to help you grow as a leader.
About Us!
Cassandra Kotlarczyk
Leadership is a journey, and Cassandra is dedicated to meeting you exactly where you are. As an executive coach and co-founder, Cassandra creates a safe, transformative space for leaders to navigate challenges and grow into their full potential.
Her background is rooted in the fast-paced world of emergency, neuroscience and surgical healthcare leadership, but her heart lies in the human element of the work. Cassandra’s coaching challenges leaders to raise the bar—without losing themselves in the process. She leverages a strength-based approach to help clients identify their natural talents and lead with confidence.
Beyond the boardroom, Cassandra is a lifelong coach. From high school basketball to her daughter’s youth soccer and running teams, she is committed to fostering self-assuredness in the next generation. She enjoys a vibrant life in Michigan with her family, two dogs, a bunny, and a flock of chickens, finding her own balance through international travel and the great outdoors.
Co-Founder
Dan Mills
Co-Founder
For over two decades, Dan has lived at the intersection of clinical excellence and transformative leadership. His career began 23 years ago as a Registered Nurse in high-stakes environments from the ER to critical care air transport—and evolved over ten years into executive leadership, ultimately serving as Chief Nursing Officer of a mid-Michigan hospital.
Holding an MBA and a Master's degree in Nursing Administration, Dan blends leadership authenticity with operational acumen. Today, as Co-Founder of Brizo Advisors, he coaches emerging leaders to build self-awareness, amplify strengths, and lead with impact. His philosophy: authentic leadership is built, not forced.
Beyond transforming business leaders, Dan also enjoys coaching young student athletes in football, powerlifting, shot put, and discus. He enjoys spending time with his wife and children, and likes to spend time boating and enjoying the wilderness.
Brizo Advisors exists to elevate leaders and organizations through personalized coaching, practical tools, and intentional development—empowering individuals to lean into their strengths, address growth opportunities, and lead with confidence and impact.
Our Mission
1. People First: Leadership starts with people, not titles.
We believe leadership development is human-centered. We meet individuals where they are, honor their experiences, and coach with empathy, respect, and trust.
2. Strengths-Based Growth: Build on what’s already strong.
We focus on identifying and amplifying strengths while thoughtfully addressing growth opportunities—because sustainable leadership is built, not forced.
3. Practical & Actionable: Insight is only valuable when it leads to action.
We deliver tools, frameworks, and strategies that leaders can apply immediately to create meaningful progress.
4. Authentic Leadership: Lead as yourself.
We believe the most effective leaders are grounded in self-awareness and authenticity, not imitation. We coach leaders to lead in ways that are true to who they are.
5. Accountability & Ownership: Growth requires commitment.
We hold ourselves and our clients accountable for progress, follow-through, and continuous improvement—because leadership demands ownership.
6. Partnership & Trust: We grow better together.
We work alongside our clients as trusted partners, building relationships rooted in transparency, collaboration, and mutual respect.
7. Positive Impact: Leadership that elevates others.
We believe great leadership creates ripple effects—stronger teams, healthier cultures, and more resilient organizations.
Our Vision
To be the premier catalyst for professional transformation, where Brizo Advisors is the gold standard for developing confident, self-aware, and high-impact leaders across every industry.
The Values That Guide Us