I did like Karren - until this week.
I would expect her to pull up candidates for their flaws, but I don't think there was much need to bring up Susan's questions as they didn't affect the task. Certainly they didn't need to be raised with such a nasty look on her face.
And the way she said that the pitch at La Redoute (sorry if that's the wrong spelling) was down to Helen, in a manner that said "Susan deserves no credit", was really irritating. What, no credit to Susan and Zoe for selecting the product or to Susan for already having won the task for her team even without La Redoute?