School of System ChangeWe know that growing a global community of change agents is our best chance to accelerate a transition to a sustainable future. Want to know more? System Change Contributors About us Blog Courses Basecamp #6 Americas Marshall Clemens Marshall is founder of Idiagram. He helps corporations, NGOs, and foundations grapple with complex sustainability issues to create large-scale systems change. Marshall is sharing his skills in systemic analysis and mapping systems with the School community.