Two researchers, one joint leadership: In our interview, Sabine Wollrab and Hans-Peter Grossart explain how, as a tandem, they share responsibility, combine their expertise, complement each other’s perspectives and shape the “Plankton and Microbial Ecology” department. In doing so, they talk not only about their work but also about personal experiences that have shaped their leadership style. This is the first time IGB has had a dual leadership team.