After a horror week, following a difficult year, Premier Mike Baird has just made things a whole lot worse for himself.

The decision to introduce a bill that radically overhauls the structure of the Independent Commission Against Corruption in the face of warnings from commissioners past and present that it will seriously weaken the organisation is extraordinary.

Baird is fond of repeating the mantra that he and his government want "a strong ICAC".

It's an important position for him to take after the watchdog brought down a Liberal premier, Barry O'Farrell, and then ended the political careers of a number of Baird's Liberal colleagues during its Operation Spicer investigation into the party's election fundraising.