At Ancestry, even in a job as seemingly specialized as that of genealogist, the component parts of the job are quite varied. If Ancestry asked you to advise the company on restructuring job design, how would you explain a recommendation for further specialization?
When workers perform small, simple tasks, they become very proficient at each task.
The workers in highly specialized jobs tend to report higher levels of job satisfaction.
Specialization increases the transfer time between tasks.
Highly specialized workers may feel their jobs are too stimulating.