Elena prides herself on being able to hire skilled team members and letting them take initiative and responsibility for their tasks. She sets high standards for each of her employees. John has been on Elena's team for 6 months and he is beginning to experience lower job satisfaction and worsened performance. He finds the tasks assigned stressful and frustrating and he is starting to become unsure of himself. According to the path-goal theory of leadership effectiveness, what would be the best course of action to help John