Paz Arroyo earned her Ph.D. at UC Berkeley, where she applied and compared multiple decision-making methods for sustainable building design and proved that Choosing by Advantages (CBA) was better at creating transparency, building consensus, and continuous learning. She has published dozens of scientific papers proving CBA benefits and making this method well-known globally in the Lean Construction community. She has consulted and taught CBA internationally. Paz also developed a popular Coursera class that teaches CBA, among other project management methods, reaching more than 300,000 students since 2016. As a Quality Leader at DPR Construction, a forward-thinking general contractor, she has helped the organisation and multiple construction projects make sound decisions with CBA. Annett Schöttle earned her Ph.
D. at Karlsruhe Institute for Technology (KIT) on requirements and incentives to create a collaborative Lean project delivery system for capital projects based on the self-determination theory. As an independent Lean consultant, Annett empowers project teams by enhancing process transparency and fostering continuous improvement. Her expertise as a CBA trainer showcased through her work with a renowned German automobile manufacturer, where she developed and rolled out a global CBA training program. Annett doesn't just teach CBA; she guides teams in strategic decision-making. Co-founding CollabDecisions, Annett is committed to reshaping the future of megaprojects and transforming the construction industry. She regularly shares her insights as a lecturer at international universities. Randi Christensen is an engineer by background and earned her PhD at Aalborg University in Denmark, focusing on how to learn from project to project.
She has then worked to make the construction industry more efficient, inclusive, and sustainable in different positions as a project manager, innovation manager, researcher, and member of various boards. By working in both practice and academia, she connects the two worlds and drives innovation. As Sustainability Director at an international engineering consultancy, she focuses on decision-making as a key discipline to drive projects in a more sustainable direction by always thinking of alternatives and including multiple voices and pools of knowledge.