With the performance benefits of team-based structures well established, a key challenge now faced by service organisations is to identify the factors affecting variability in team efficacy among similar teams. In this paper, we identify that a team's motivation to develop or demonstrate ability, that is the team goal orientation, is influential to team efficacy. Addressing prior research that has shown conflicting results regarding the ability of team goal orientation to predict team behaviours and outcomes, this paper develops a conceptual model illustrating the role of team goal orientation as a moderating variable on team efficacy.