As can be seen, empowering leadership did not have a significant relationship with team performance. Therefore, according to the norms set by Baron and Kenny (1986), it is not possible to establish the mediating roles of knowledge sharing and team efficacy in the relationship between empowering leadership and team performance. Testing the indirect effect of empowering leadership on team performance requires a significant relationship between empowering leadership and knowledge sharing (or team efficacy) and a significant relationship between knowledge sharing (or team efficacy) and team performance (Kenny et al., 1998).