A：Hi Chen Hao. How are you today?
A：Anything I can help you with?
A：Why is there an issue?
A：In what way?
A：Does she know what is expected?
A：Does she have a reason for coming unprepared?
A：Tell me why this is a problem.
A：I hate to cut this short, but we are both going to be late. Can we continue this conversation later?
A：Tell me about your problem with Sue. You are the team leader. Have you talked to her about arriving unprepared?
A：Sounds to me as if you need to talk to your boss now.
A：If you have handled things right up to this point and given Sue a chance to correct her behavior, you need support from upper management.
A：Do it as quickly as possible before the situation gets worse.
A：That will only create more conflict and conversation plus cause additional trouble for you and Sue.
A：Gather all your facts and documentation, making sure to separate any personal feelings from your professional opinions.
A：When you approach your boss, give Sue credit for her talent and expertise before you mention her approach to team issues.
A：Let your boss know what you have done to try to correct the problem and your ideas to correct the situation without losing Sue.
A：It rarely does. You need to face the issue with your associate first as you already have. Since that has not worked, approach your boss and seek advice to resolve the issue to the benefit of all.