Leadership rooted in experience and humanity
A modern approach that honors the complexity of leading people—combining proven frameworks with deep understanding of what makes organizations truly thrive.
The Dionne Group was founded to meet leaders where they truly are
With decades of experience across corporate, nonprofit, and complex organizational environments we've seen firsthand what enables leaders to thrive - and what quietly holds them back. Technical skills and experience matter, but they are no longer enough.
What distinguishes impactful leaders today is their ability to:
Navigate complexity without losing themselves
Lead others with empathy and clarity
Align values, decisions, and actions under pressure
Meet Tammi
The Dionne Group was founded by Tammi D. Teague, an executive leadership coach and consultant with more than 20 years of experience working across corporate, nonprofit, and complex organizational environments.
Tammi has spent her career partnering with senior leaders and leadership teams as they navigate change, scale organizations, and make high-stakes decisions under pressure. Her work is informed by deep experience inside organizations-where leadership challenges are rarely theoretical and the human dynamics matter as much as strategy.
She brings a gounded, thoughtful approach to leadership development - one that blends business acumen with emotional intelligence, self-awareness, and systems thinking. Clients often describe her as a trusted thought partner: candid, steady and deeply attuned to both people and outcomes.
We believe leadership is both personal and relational
Growth happens from the inside out, and sustainable performancee requires self-awareness, courage and practice.
Our work creates space for leaders to reflect deeeply, challeng assumptions, and experiment with new ways of leading - always anchored in real organizational outcomes.
