When I first spotted this post on Ben Brogan's blog earlier today I initially thought it was a bit frivolous of him to start speculating about leadership "beauty contests." But in fact Brogan has a very good point.
Despite Gordon Brown's current dominance of the political scene, it should not be forgotten that this could easily be both his first and last conference as Labour leader.
As Brogan points out: "If Brown listens to the hotheads, goes for November, and gets it wrong, we really will be looking for a change candidate."
So just for the sake of argument - and because no party conference would be complete without a bit of leadership speculation - who might that candidate be?
Well, as Iain Dale notes, frontrunner David Miliband has just bored the delegates into slumber for the second year running, although the content of his speech today was largely spot-on.
Brogan himself speculates that energetic Ed Balls could emerge as a runner, although I have long believed that his wife, Yvette Cooper, is really the more talented politician in the Balls household.
Health Secretary Alan Johnson would certainly stand, but at 56 may be considered too old for a gruelling four or five years of opposition before he would have a chance to unseat Prime Minister Cameron in 2011/12.
In my view, the dark horse could well be Jacqui Smith, who has made a great start as Home Secretary and has impeccably New Labour credentials. It will be interesting to see how her speech goes down later in the week.
On a related point, does anyone know why Brown moved the leader's speech to Monday? I guess he must have had his reasons but it's turned the whole of the rest of the conference into a largely meaningless anticlimax.
The conference always tailed off after Tuesday, but I reckon that the extra day's build-up to the old Tuesday afternoon slot was worth at least an extra day's front-page headlines for Labour.