Where is the Labservative Substance this Week?

At the weekend both David Cameron and Gordon Brown said more or less the same thing this election is about substance not personality.

This morning Nick Clegg talked about radical reform in our schools, yesterday he talked about banking reform as well as fairness for rural Britain and on Monday he was talking about stimulating the green economy.

Now I may be wrong but all I've heard from the Labservatives is how they are all about change, or that they are the progressives. Unlike Nick they haven't been putting any substance behind those claims all week. Indeed the Labservatives have been talking about negative issues, usually part truths about the Lib Dems all week. Come on Gordon and Dave where is the substance? Or is that lacking because there isn't any real change, progressiveness or radicalism in what you have to offer?