Matt Roush: Not sure if a Sully comeback is in the cards, since that actor is currently occupied guarding the secrets of Warehouse 13. And how much am I not surprised to get annoyed mail about Booth's new squeeze. Talk about a thankless task. Regarding Eric Milligan and Zack, it really is time to let that one go, isn't it?. I wasn't crazy about how all of that was handled, either, but I have become kind of attached to some of the assistant squints on the rotation (much as I enjoyed the parade of secretaries on Murphy Brown back in the day), so I can now see the wisdom in shaking up that part of the show. Still, it seems to me that if the writers come up with another story that allows them to bring Zack back in for a guest spot, they'd do it, but sparingly.