Such a weak strategy. Ever heard of playing the ball, not the man?
Depends if you want to win? It was actually a strategy discussed recently with a long time political strategist over a few beers.
It is a strategy used in politics all the time. You associate your agenda with a name and a face, the villain. Like pink batts = Peter Garrett, NSW labour = Eddie Obeid or Joe Trapodi. The individual becomes the target of the campaign for the wider agenda. It is much more effective than just targeting say the "government".
The media also love it, it gives them someone to chase and the strategy often succeeds as the intense pressure on the individual "cracks" them into blunders or backdowns. The organisation (board) also don't mind it as it enacts a fall guy if the worst case happens for the organisation.
Read the article posted by manfred. You can see signs of the media side of it with the "Joyce malfunctioning calculator" and also comment that the board are getting nervous.