The care of the pregnant mother and her unborn child requires the coordination of multiple providers and specialties within the health care system, including OB/GYN hospitalists, primary OB/GYN provider, family practitioners, midwives, nursing staff, anesthesiologists, operating room staff, neonatologists, social workers, laboratory staff, pharmacists, and hospital administrators. Critical or emergent situations may require input from maternal-fetal medicine specialists, general and interventional radiologists, surgical specialists (including general surgeons, urologists/urogynecologists, or gynecologic oncologists), medicine subspecialists, and code teams. OB/GYN hospitalists manage these resources and encourage collaboration among these entities to provide optimal patient care. Teamwork and team leadership by OB/GYN hospitalists are even more vital when a patient is in critical condition. High-functioning health care teams have excellent communication, respect for each other, and mutual trust to deliver comprehensive, coordinated care and work to continually optimize outcomes. Team training and crew resource management can facilitate delivery of team-based care.[1]