For all the rah-rah talk about teamwork, teams don’t always have a positive connotation. (I can attest to this as someone always among the last people chosen for dodgeball teams.)
Large-scale biology revolutionized the life sciences, shaking the comfortable model of PIs working by themselves in their labs. Ever since the Human Genome Project, teams have been the vehicle of choice for accomplishing big research programs. In science, if you get 20 or 50 or 100 minds focusing on the same thing, it actually does get done.