Newcomers no strangers to controversy
A university chief, a prominent environmental consultant, a pro-Beijing physician and a financial expert have emerged as the major new players in Mr Tung's cabinet.
Chinese University vice-chancellor Arthur Li Kwok-cheung, 56, is no surprise for the post of secretary for education and manpower.
He earned his doctorate in surgery at Cambridge in 1981 and became the Foundation Chair of Surgery at Chinese University in 1982. In 1992 he was made department dean and in 1996 defeated 29 rivals to become vice-chancellor. He is a local delegate to the Chinese People's Political Consultative Conference (CPPCC) and was a member of the Selection Committee for the first chief executive.
Dr Sarah Liao Sau-tung, the new minister in charge of the environment, works and transport, rose to prominence when she became the mainland's environment ambassador in its bid to host the 2008 Olympic Games.
Analysts said her role in the successful bid impressed Mr Tung and Beijing.
Currently the managing director of CH2M Hill (China), part of a US-based environmental engineering firm, Dr Liao has been criticised for a possible conflict of interest for conducting a report on indoor air quality in 1999 commissioned by the Environmental Protection Department.