He said the party was about improving the health service and education "for all children in all schools, not just for some children in some schools".

BBC: NEWS | UK | UK Politics | Cameron 'won't flinch' on change

In 1997, for example, improving the National Health Service was the country's priority.

ECONOMIST: Bagehot

He then issued an Executive Order for Improving Access to Mental Health Services for Veterans, Service Members, and Military Families.

WHITEHOUSE: Joining Forces Blog

Mrs Griffiths also said officials were working on improving the transparency and accuracy of data on the health service.

BBC: Lesley Griffiths: NHS staff 'should report care concerns'

And he added they would prepare the health service for the white paper due out later this year on improving out-of-hospital care.

BBC: Operating theatre generic

Improving the culture, accountability and transparency is clearly important, but the defining challenge for the health service over the next decade and beyond could prove to be something completely different.

BBC: Are the patients the problem?