The leadership candidates have so far focused on tone and presentation.
Miliband's successor should focus on overturning the Tories' advantage on leadership and the economy.
The risk is that the party starts by narrowing rather than broadening its appeal.
Former shadow justice secretary and shadow London minister joins the race.
Jon Trickett and Ian Lavery are the two leading contenders to represent the left in the contest.
Labour's polling position was worse than it looked in the public polls, reveals Labour's official pollster.
Acting leader tells first PLP meeting that party must "throw off any sense of loss or mourning".
Boundary changes, Scotland and a new Tory leader mean the task is formidable. But five years is an eternity in politics.
Unannounced rival campaign accuses shadow ministers of "behaving like family members taking jewellery off a corpse".