The sociology of teams is how everyone interacts. It's when and how any kind of information and knowledge gets shared. It's how communication is emotionally charged. It's how people include each other in thinking, learning, decisions and tasks. It's how people share feedback.
At the heart of sociology is the ecology of agreements and tensions that exist. Tensions are disconnects due to working by assumptions rather than agreements. When we get the sociology right, everything else on teams happens right.