Chris Bowen and Bill Shorten are currently on the front foot.
I happened to see Shorten in Question Time last week before Stuart Robert got dumped, and he looked really confident and impressive. (The government benches decidedly glum, as they do when they know the inevitable will happen, just that they have to wait for a bit of process to finish.)
Chris Bowen is also sounding very on top of his game, too, on the new negative gearing/CGT policy.
This is looking like how policy development and announcement should be done, for a change.
And Rupert's hobby paper The Australian is showing signs of being worried, wheeling out Sloan and Ergas in the one edition today to attack Labor for daring to have a policy other than merely "cut spending."
(I don't subscribe, so it's hard to tell for sure, but I think by the looks of its website, the paper has become more like the Daily Telegraph since Whittaker took over. And we all thought Chris Mitchell was bad...)