('US') There are 100 people 'on staff'. [=working as members of the staff]
The department 'is staffed' with an equal number of men and women.
He has been 'on the staff' [=a member of the staff] for 25 years.
(..) You can't operate. JORDAN: They've rescheduled for Monday... an elective valve, no big deal. It is unprofessional, and it embarrasses me in front of my staff. I saw the chart on Balford. I'm on the committee. It's on review. - It wasn't your fault. - I know. (..)1998 City of Angels