Unfortunately that does not work. That result is just the number of jobs each tech does.
Work Center Scheduled as the Dimension
count([Employee Scheduled]) as the Expression
That will result in 5 for Meter Shop and 3 for Cafeteria. It just counts the instances in each Work Center Schedule or in this case the number of jobs.
Do i need to add Distinct to my count? The Employee Scheduled field is unique to each Work Center (ie, an employee can only work in one group) but there can be multiple instances of an employee since they do multiple tasks per day.