People who are always introducing (adding) new people, new ideas, new questions, and new assets to the network
People who are always looking to take something (subtracting) from the network - they are the consumers, stealers, and energy-drainers in the network
People who are always aligning people in opposition to others in the network; they keep the network divided into us-them divisions based on either-or thinking
People who create rhizomic possibilities that can keep multiplying, virally, by virtue of their replicability and value to the network
People who create new fusions of possibilities, transcendent and transformational ways for the network to become more inventive and adaptive. These are the designers, architects, poets, and crafts people in the network who provide vision and inspiration to adders and multipliers.
Obviously, rich networks grow adders, multipliers, and integrators.