The shadow international development secretary has resigned from Ed Miliband's frontbench to focus on his campaign for the Scottish Labour leadership.
Have they passed the Question Time test?
Umunna and Reeves are among the "newbies" joining Labour's new shadow cabinet.
An interesting dynamic to watch is how these two ambitious newbies get on with Ed Balls.
Who is in and who is out in the new Labour cabinet?
In order to open up their parties, leaders end up on relying on centralising devices.
Labour leader moves to assert his authority with historic reform.
If Ed Miliband is under fire, doesn't he need public and visible backing from his frontbench colleages?
Junior jobs for many of the shadow cabinet election losers, as well as some of the new intake.