Team Culture: The Guide to Building High-Performing Teams

What is Field Notes?

Field Notes on Building a Legendary Team Culture is our weekly newsletter for coaches and leaders who want to build a lasting legacy.

Here’s the deal: Team culture isn’t magic. Too often its chalked up to “chemistry” or factors beyond our control, leaving leaders feeling helpless. The reality is, we know what creates legendary team cultures, and it is built on principles that any leader can learn and apply.

Each week, we share stories, lessons, and practical insights from our work with high-performance teams. We explore what actually drives belonging, commitment, and sacrifice toward a shared goal. Take a look — Your team will thank you for it.

Leadership, Coaching Brian Sullivan Leadership, Coaching Brian Sullivan

A new approach to Mental Toughness

Mental toughness isn’t about shutting down emotions—it’s about staying committed to your values and game plan, even under pressure. The key skill behind it? Psychological flexibility. This evidence-backed approach helps coaches develop resilient, high-performing teams by staying present, open, and action-oriented in critical moments. Learn how top coaches build mental toughness in athletes by modeling psychological flexibility in practice and competition

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