"To insult public servants in this way is contemptible," Dave Penman from the FDA union said.
When the last ethics chief resigned it took five months to find his successor.
Unions are threatening industrial action over plans to slash civil service jobs by 91,000.
Dr Scott Gottlieb made a concerning distinction between the first and second waves on CBS' "Face The Nation."
HuffPost UK takes an in-depth look at what happens when awkward information becomes public.
New Treasury plan may be too hardline for unions.