Smaller teams maximize speed with a sweet spot of several people.

This is in part because cognitive load and number of communication channels goes up exponentially with number of members, especially when a team optimizes for knowledge sharing across their domain. For this same reason, adding people to projects doesn’t often make them go faster. 5–9 contributors is the sweet spot.rS3


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    Jeff Sutherland, Scrum: The Art of Doing Twice the Work in Half the Time, First Edition (New York: Crown Business, 2014). (See notes.)