Leadership development made more human.

Chaili Trentham is a leadership and organizational development practitioner, speaker, and founder of Tierra Leadership. Her work has been shaped by what she has studied and practiced, but also by what surrounded her long before leadership became her work. Growing up, she watched her dad build a company called Tierra Del Verde and learned two lessons that stayed with her: the value of hard work, and that the work we do can be one of the ways we care for people.

Those experiences have led to a simple belief: leadership is not something we arrive at; it is something we practice. It is shaped in everyday moments, in how we navigate change, build trust, make difficult decisions, and choose to show up for others.

Tierra means earth, something steady, rooted, and alive beneath the surface. The name is both a nod to where Chaili comes from and a reflection of what she believes: leadership grows through reflection, experience, and consistent care, shaped over time by who we choose to be.

Through Tierra, Chaili creates tools, writing, and experiences that bring leadership development closer to the moments where leadership actually happens—helping people become more grounded and intentional in how they lead.