Tristan Connor, a manager at the TYX Corporation, has been dealing with a poor-performing employee for a couple months. Based on the company's progressive discipline process, Tristan has held multiple meetings with the problem employee in an attempt to resolve the issue. Unfortunately, it looks like the employee may need to be terminated. However, before terminating the employee, Tristan needs to provide a(n) threat of suspension. unofficial verbal warning. last chance notification. right to go to arbitration. official written warning