Reorder your staff list
Within Settings > My Business, click Manage under Barbers & Services (or Therapists & Services), then drag the staff member to another position using the 4-arrow icon:
Randomise your staff list
To show your staff in a random order each time a client books, click the pencil (edit) icon next to the shop and tick Randomise the order of barbers shown to clients (the label shows your own staff word, e.g. therapists).
This only changes the order clients see when booking online. Your timetable isn't affected.
Related articles
How to change the order of services - Rearrange the service list shown during client booking, and the sequence when multiple services are booked together.