Under the framework, staff transferring to the new councils are protected by TUPE regulations.
Chief executives of each of the nine unitaries have to be recruited by open competition by April 2010. Other top posts should also be subject to open competition.
Mr Healey said: "The framework also makes clear that councils should take full advantage of their new start to bring in fresh blood to their senior management teams so that the best people are in place to lead and manage the new flagship council."
Fresh skills 'vital'
"New senior officers with fresh skills, experiences and new perspectives will be vital in creating a successful future for these flagship councils,” added Mr Healey.
The new unitaries, which reduce the number of councils in those areas by 35, are Bedfordshire, Cheshire, Cornwall, Durham, Northumberland, Shropshire and Wiltshire. Savings of more than£100m are expected.
The government has circulated its Draft Staffing Regulations & Guidance, setting out key provisions, to trade unions, joint implementation teams and Local Government Employers for final comments.