DO is leaving the NHS. A friend who is a nurse is planning a move to the private sector, and my aunt a nurse had already left. All 3 care about the NHS and had every intention of staying there for life. But all 3 have/had enough.
My friend was in tears today saying this week has been particularly bad as they have been so understaffed that it was dangerous. She said she just can't do it any more.
My Aunt left a year ago because she was fed up of the awful way staff were treated by management, which simply led to a shortage of staff and their total reliance on expensive agency staff.
None of this is rocket science. If you want to retain staff, have enough staff and treat them decently.