Despite increased research on team leadership, little is known about the conditions under which coaching versus directive forms of team leadership are more effective, or the processes through which team leadership styles influence team outcomes. In the present study, the authors found that coaching leadership was more effective than directive leadership when the team leader was highly charismatic and less effective than directive leadership when the team leader lacked charisma. Directive leadership was more effective than coaching leadership when team members were high in self-efficacy and less effective than coaching leadership when team members lacked self-efficacy. The moderating effects of leader charisma and team member self-efficacy were mediated through motivational pathways involving team member effort.