About Us – Sierra

Collett Coaching

Hey, I'm Sierra. I help changemakers become resilient leaders through complex times.

My Story

My journey into leadership coaching began with a simple observation: the most impactful leaders aren't those who have all the answers, but those who ask the right questions and create space for growth both in themselves and others.

After years of working with changemakers across 25+ countries, I've witnessed firsthand how transformative the right coaching relationship can be. From emerging leaders navigating their first management roles to seasoned executives facing unprecedented challenges, I've had the privilege of supporting leaders at every stage of their journey.

My approach is grounded in ICF coaching standards and enriched by certifications from Brown University. But beyond credentials, what drives my work is a deep belief in the potential of every leader to create meaningful change—starting with themselves.

My Approach

I believe leadership development is deeply personal. There's no one-size-fits-all formula for becoming a better leader. That's why my coaching is tailored to your unique context, challenges, and aspirations.

Together, we'll create a sensemaking frame for your leadership journey—a space where you can explore your inner landscape, uncover patterns, and develop the resilience needed to lead with clarity and confidence.

Whether you're navigating conflict, building strategic thinking skills, or developing your leadership presence, I'm here to support you in transforming challenges into opportunities for growth.