From an HR perspective:
An employee is complaining to you about his supervisor. He says that the supervisor expects more from him than from other employees. He feels the supervisor picks on him and gives him the most difficult jobs to do. He is quite unhappy and is considering asking for a transfer to a different department. He is claiming that the supervisor is treating him unfairly. You ask the employee if he has discussed the situation with his supervisor. He has not. As the HR representative, you ask the employee whether he wants you to get involved in the situation, of if he came to see you because he needed a listening ear. The employee responds by requesting help. What will you advise him?