There is a copy desk chief who is not too frequently in the slot. There are 4 or 5 who work the slot, and they are on the rim when not in slot. Makeup editors are generally not in slot. I haven't been in slot for 20 years. Usually other desks.
Some editors tend to overedit.
Makeup editors would rather put a house ad in unused space than a wire brief. As far as I know, it's a couple of the assistant managing editors. The youngest is in her late 20s. I'd say average is in the 60s. As the senior member of the staff, I've been there 30 years.