Michael Letta is a venture capital investor at Human Ventures who brings an unusual combination of operator-CFO experience and nonprofit background, having previously run finance and operations through a major growth phase at charity: water before moving into investing. He takes a values-driven approach to backing companies, measuring things like how well teams live their values and customer recommendation strength rather than just standard growth metrics, while using a field of play metaphor for capital allocation that sets clear guardrails but lets founders run any play within that space.