Person A and person B have worked there for the same amount of time.
Person A works 2 days a week, for about three hours a day. Person A is trained on tasks 1,2,3, and 4.
Person B works 3 days a week for over 6 hours a day. Person B is trained on tasks 1,2,3,4,5,6, and 7.
Both employees are punctual and have good attendance records in general.
Why would it make ANY sense to pick person A over person B?