Ed Miliband's denying a rift with ex-Scottish Labour leader Johann Lamont.
The Opposition leader broke his silence on her exit almost a week after she stood down.
Ms Lamont claimed she was working out of a branch office, and wasn't allowed to decide how to respond to certain issues.
Mr Miliband disagrees with that and insisted he had "worked very well" with her during her three years as Scottish leader.
He added: "She made her decision to resign and as she said last week it is now time to move on, look ahead, elect a new leader and we face a big challenge."