In the past decade, the number of small architecture firms has been shrinking while the number of large firms has increased. The reason? A steep rise in the complexity of the projects firms are working on. As buildings get taller and more advanced, firms need bigger teams to handle the scope. And those teams would be lost without a good project manager to organize it all. Flora Bao, project manager at Bjarke Ingels Group (BIG), shared what it takes to be an excellent project manager, from soft skills to design knowledge to balancing internal and external goals.