With the end of 2015 in sight, we asked Whitehall's top officials to review the year, set out their priorities for 2016 – and shed some light on their festive plans. Sir Derek Jones, permanent secretary of the Welsh Government, takes part in our biggest-ever perm secs' round-up series...

With the end of 2015 in sight, we asked Whitehall's top officials to review the year, set out their priorities for 2016 – and shed some light on their festive plans. Ordnance Survey chief executive Nigel Clifford takes part in our biggest-ever perm secs' round-up series...

With the end of 2015 in sight, we asked Whitehall's top officials to review the year, set out their priorities for 2016 – and shed some light on their festive plans. National Savings & Investments (NS&I) chief executive Jane Platt takes part in our biggest-ever perm secs' round-up series...

With the end of 2015 in sight, we asked Whitehall's top officials to review the year, set out their priorities for 2016 – and shed some light on their festive plans. Civil service chief executive and Cabinet Office permanent secretary John Manzoni takes part in our biggest-ever perm secs' round-up series...

With the end of 2015 in sight, we asked Whitehall's top officials to review the year, set out their priorities for 2016 – and shed some light on their festive plans. Sir Jeremy Heywood, cabinet secretary and head of the civil service, takes part in our biggest-ever perm secs' round-up series...

With the end of 2015 in sight, we asked Whitehall's top officials to review the year, set out their priorities for 2016 – and shed some light on their festive plans. Department for Education permanent secretary Chris Wormald takes part in our biggest-ever perm secs' round-up series

With the end of 2015 in sight, we asked Whitehall's top officials to review the year, set out their priorities for 2016 – and shed some light on their festive plans. Major Projects Authority chief executive Tony Meggs takes part in our biggest-ever perm secs' round-up series

With the end of 2015 in sight, we asked Whitehall's top officials to review the year, set out their priorities for 2016 – and shed some light on their festive plans. Martin Donnelly, permanent secretary at the Department for Business, Innovation & Skills (BIS) takes part in our biggest-ever perm secs' round-up series

With the end of 2015 in sight, we asked Whitehall's top officials to review the year, set out their priorities for 2016 – and shed some light on their festive plans. Debbie Alder and William Hague – currently leading civil service HR in a job-sharing role – take part in our biggest-ever perm secs' round-up series. Answers by Debbie Alder​

With the end of 2015 in sight, we asked Whitehall's top officials to review the year, set out their priorities for 2016 – and shed some light on their festive plans. Met Office chief executive Rob Varley takes part in our biggest-ever perm secs' round-up series...

With the end of 2015 in sight, we asked Whitehall's top officials to review the year, set out their priorities for 2016 – and shed some light on their festive plans. Charity Commission chief executive Paula Sussex ​ takes part in our biggest-ever perm secs' round-up series...

With the end of 2015 in sight, we asked Whitehall's top officials to review the year, set out their priorities for 2016 – and shed some light on their festive plans. Melanie Dawes, permanent secretary of the Department for Communities and Local Government, takes part in our biggest-ever perm secs' round-up series...

With the end of 2015 in sight, we asked Whitehall's top officials to review the year, set out their priorities for 2016 – and shed some light on their festive plans. Ruth Owen, head of the government's Operational Delivery Profession​, takes part in our biggest-ever perm secs' round-up series...

With the end of 2015 in sight, we asked Whitehall's top officials to review the year, set out their priorities for 2016 – and shed some light on their festive plans. Mark Lowcock, permanent secretary of the Department for International Development, takes part in our biggest-ever perm secs' round-up series...

What skills and capabilities are required for overseeing major government projects – and is there a clear enough career path for project managers in the civil service? Colin Marrs reports from a recent CSW round table

With the end of 2015 in sight, we asked Whitehall's top officials to review the year, set out their priorities for 2016 – and shed some light on their festive plans. Mark Sedwill, permanent secretary of the Home Office, takes part in our biggest-ever perm secs' round-up series...

With the end of 2015 in sight, we asked Whitehall's top officials to review the year, set out their priorities for 2016 – and shed some light on their festive plans. Dame Sally Davies, chief medical officer for England, takes part in our biggest-ever perm secs' round-up series...

With the end of 2015 in sight, we asked Whitehall's top officials to review the year, set out their priorities for 2016 – and shed some light on their festive plans. Stephen Lovegrove, permanent secretary of the Department of Energy and Climate Change (Decc), takes part in our biggest-ever perm secs' round-up series...

With the end of 2015 in sight, we asked Whitehall's top officials to review the year, set out their priorities for 2016 – and shed some light on their festive plans. HM Revenue and Customs (HMRC) chief executive Lin Homer takes part in our biggest-ever perm secs' round-up series...

With the end of 2015 in sight, we asked Whitehall's top officials to review the year, set out their priorities for 2016 – and shed some light on their festive plans. Department for Culture, Media and Sport permanent secretary Sue Owen, takes part in our biggest-ever perm secs' round-up series...

With the end of 2015 in sight, we asked Whitehall's top officials to review the year, set out their priorities for 2016 – and shed some light on their festive plans. Rowena Collins Rice, director-general of the Attorney General’s Office (AGO), takes part in our biggest-ever perm secs' round-up series...

With the end of 2015 in sight, we asked Whitehall's top officials to review the year, set out their priorities for 2016 – and shed some light on their festive plans. Leslie Evans, permanent secretary of the Scottish Government, takes part in our biggest-ever perm secs' round-up series...

With the end of 2015 in sight, we asked Whitehall's top officials to review the year, set out their priorities for 2016 – and shed some light on their festive plans. Jon Thompson, Ministry of Defence permanent secretary, takes part in our biggest-ever perm secs' round-up series...

With the end of 2015 in sight, we asked Whitehall's top officials to review the year, set out their priorities for 2016 – and shed some light on their festive plans. Dr Malcolm McKibbin, Head of the Northern Ireland Civil Service, takes part in our biggest-ever perm secs' round-up series...