In a longitudinal study, we found that higher group performance was associated with a particular pattern of conflict. Teams performing well were characterized by low but increasing levels of process conflict, low levels of relationship conflict, with a rise near project deadlines, and moderate levels of task conflict at the midpoint of group interaction. The members of teams with this ideal conflict profile had similar preestablished value systems, high levels of trust and respect, and open discussion norms around conflict during the middle stages of their interaction.