Labour complaints about the Brownite teenagers' botched election have been dimmed by its unintended consequence: Sir Ming's decision to quit. That was not what either rival wanted: he was no threat.
I don't know if that's quite right. Obviously it would be giving Brown way too much credit to say that he foresaw Ming's departure as a consequence of not calling the election, but he did have much more to gain from that possibility. Campbell was a threat to Labour in the sense that his poor leadership led disaffected LibDems to the Tory camp. Labour has to feel pretty good about this, I would imagine.
On another note, it seems extremely odd to me that there's a large section of the electorate out there wavering betwen the LibDem and Tory camps. Not sure I understand that one.