With DoD I would have cut the "old caretaker is on his way" subplot, otherwise I think it worked fairly well.

Yes, I like the whole homely side of Diana, too, but I think I would have enjoyed it more when the rest of the episode hadn't already been about her. I think "Need to know" worked in terms of developing her character so much better. Just one night in a hotel room and we knew why she is at the FBI, how she grew up aso.