The phrase "a single staff" is correct and usable in written English.
It can be used when referring to one individual member of a staff or team, often in a context where the distinction of being singular is important.
Example: "In our small organization, we have a single staff member dedicated to customer support."
Alternatives: "one staff member" or "a lone staff member".
Gove's concerns were wider than choices about a single staff member, they say.
Suspicions remained that a single staff member may have assisted the core looters.
Do all you can to create the sense of a single staff.
When some federal money was found to fund a single staff position, he became the project's first employee.
-- the 98th-largest media market in the nation -- did not send a single staff member to the convention.
Most public schools in the United States don't have a single staff member dedicated to helping students apply to college.
In 2003, amid a budget crunch, the authority successfully reduced the number by limiting each station to a single staffed elevator.
In some cases it is explicit, with two or more different staff groups operating relatively autonomously; in others, although a single central staff appears on the organization chart, subgroups within this staff operate independently.
In Lufwanyama, four facilities had no staff trained in case management, and one facility reported a single trained staff member who was absent the entire week before data collection; staff availability in the remaining 10 facilities ranged from 36%to88%8%.
Palin alerted her household manager that she wanted to host an Easter meal for single staff members who wouldn't be able to visit with their families on the holiday.
In less precise work a single wooden staff can be used; for detailed leveling of a small area, the staff is moved from one point to another without moving the level so that heights can be measured within a radius of about 100 metres.
