How many of Rudd's ministers are competent?

With the more and more exposure of the government's problems over the last two years, one has to wonder how competent of the Rudd government is and how many of his ministers are competent enough for their jobs.

The line up:

Rudd: Prime Minister responsible for his government

Gillard: Deputy PM, responsible for a number of portfolios including schools and sitting in a number of committees overseeing government strategies and expenditures, school halls and libraries

Swan: Treasurer, responsible for economic policies and budget policy, from budget surplus to deficit and planned hundreds of billions government debt

Tanner: Minister for Finance, responsible for government finance and expenditure, responsible partially for cash handouts to inflate the government debt and worsen budget

Conroy: Minister for Communication, responsible for the $43 billion NBN with no business case study

Wong: Minister for Climate Change and Water, responsible for the failed ETS legislations and Copenhagen debacle

Garrett: Minister for the Environment, Heritage and the Arts, responsible for the insulation failures

Fitzgibbon: former Minister for Defence, the defence payroll debacle and the Helen Liu donations