I have just been watching John Hutton's interview with Andrew Marr. He got a pretty easy ride considering the circumstances, but he did agree the government was suffering from "drift". Unfortunately Marr didn't follow up this interesting admission.
At the end of the interview he was asked twice if it was likely that Brown would lead Labour into the next election. He avoided the question by saying that Brown "can" do so, rather than say he will do so.
Otherwise he stayed on the tightrope. Hutton is a key figure in this. If he decided that time was up and jumped, things would really get interesting.