The number of quality control specialists required depends on the size of the team and the workload:
-Up to 10 agents: Typically, a combined supervisor and checker position would suffice.
-10 to 40 agents: It's recommended to have 1 Quality Controller (QC) along with trainees to handle the workload effectively.
-40 to 80 agents: In this case, having 2 QCs along with trainees would be beneficial to manage the increased workload.
-80 to 120 agents: For larger teams, 2 QCs and 1 leading QC, along with trainees, are recommended to maintain quality control and manage the workload efficiently.