The Tories don't like Vince Cable. They don't like the fact that he is trusted by people because he speaks common sense, has a dry unplanned humour that seems natural and unrehearsed, and they don't like the fact that he has been proved right so many times and provides a sharp contrast between himself and the Tories George Osborne
It was Vince Cable who said that Northern Rock might have to be nationalised whilst the Tories claimed the plan was ridiculous. In the end Vince was proved right whilst the Tories never ever produced a plan for Northern Rock other than to oppose whatever the government suggested.
It was Vince who talked about more regulation of rogue banks whilst the Tories were moaning about there being too much regulation on the financial sector.
Vince too has real world experience as a someone with real responsibility in one of the world's biggest companies. Vince's knowledge is based on working his way to the top, living in the real world and not having things handed to him on a plate by virtue of his old school tie.
So it is rare but refreshing to see a Tory pointing out that Vince Cable is leading and the Tories following in his wake.
The truth is, if you want Vince Cable, you need to vote Lib Dem.