In a diverse team.a "faultline" refers to cases in which:
a team tends to find fault or blame in the other team members rather than their own behavior.
group members fall into two highly visible.moderate, non-overlapping subgroups usually based on
demographic characteristics (such as male vice-presidents and female clerical workers)
group members make more extreme judgments of demographically dissimilar group members than is
actually warranted.
a homogenous group does not allow a diverse member to join the group