If this is to be believed then Balls and Brown are the champions of social democracy against the other prominent Labour people who are all a bunch of Tories in red clothes. A scary prospect indeed.
However, I think Milne skirts around the important issue: a lack of money.
While he does address some of the proper issues around progressive taxation and regulation, if he believes the 'investment vs cuts' line he's mental.
There is an element of one-up-man-ship regarding public spending cuts, but the bleak reality is that what money the government has is largely borrowed and that needs to be dealt with.