Much more detailed than I thought.

"To help with this, instead of a focus on employees, there’s a focus on roles. Each circle has a ‘Lead Link’ who determines what roles the circle needs and how they get assigned. In fact, one person can hold multiple roles if their bandwidth and expertise allows. Stirman is both the People Operations lead and Word Master (which comes with final say on punctuation and capitalization, among other word-based dilemmas)."

Isn't this another way of saying he's manager of People Operations and Words? Perhaps there is no more formal career ownership, but it still sounds like he's a manager, no?