One other thought - earlier today McCarthy categorially denied the Times story today that a majority of the funding for new housing was being drawn from the Decent Homes programme. He also denied that there was a need for as much as £750m to be found from other departments within government to pay for the new housing package (see my previous post). Nonetheless, he was vague about exactly where and how the cash would be allocated and decided.
As this BBC story lays out, the whole thing seems to be dissolving into a mass of confusion one way as departments scramble around to protect their own budgets.