Finding exceptional talent isn't about credentials—it's about identifying people who thrive in positive feedback loops. Graham Duncan, co-founder of East Rock Capital managing $2 billion, reveals how he spots high-potential investors by assessing the tension between aggression and integrity, using stress-tested references, and observing how people behave during crises like 2008. His framework for talent selection applies across any domain where human judgment matters. Graham identifies talent by evaluating the tension between aggression and integrity, or aggression and humility—people who push hard but maintain ethical boundaries create the most value long-term.