She likely knows what you’re thinking. : The venture capital arm of hedge fund Two Sigma Investments just hired a chief of staff with a rather unique background. Juliette Han started at Two Sigma Ventures earlier this month. Han comes over from rival hedge fund Citadel where she was the chief operating officer concentrating on human capital development and other strategic HR functions, according to LinkedIn. She previously held the title of chief of staff title at McKinsey & Co. as it launched its New Ventures initiative, before which she was one of their management consultants.