An assembly employee meets with the HR manager to discuss a supervisor's failure to respond to a request for additional training that was submitted six months ago. The employee claims that the supervisor makes daily statements to both the employee and to other supervisors about the employee's lower-than-expected performance. Furthermore, based on overheard comments, the employee believes that other assembly employees received a higher pay raise. Due to consistent turnover, the department currently lacks the number of employees needed to meet the production schedule, and the assembly employee is now also threatening to leave the organization. When questioned by the HR manager as to whether other employees in the department witnessed any negative interactions between the assembly employee and the supervisor, they do not reply