Questions seem to be staying in the "featured" tab for too long. This previously happened with this question and now with this one. In both cases the bounty expired and yet the question remained "featured". I think it may have been when another bounty was started that the first question finally got bumped out of the "featured" list, but that may have just been when I noticed it.
Thank you to the flagger-who-shall-remain-anonymous who pointed this out the first time around.