Nova Class is listed as a science vessel which is half the size of the Intrepid.
Janeway had a two week mission to bring back Tuvok and blow up Chakotays homebase with her tricobalt weapon. Not roaming about the Federation until something popped up like Picard, or 5 years to hammer against the limits of known space like Kirk.
2 weeks, and then back to a Starbase, Sam left her Husband on DS9, it's possible that Janeway would have been directly under Sisko waiting for him to give her her next 2 week mission, and then she slips right back under him.
Methinks that this is the crew she wanted for this mission.
But if her next 2 week mission was completely different, she might switched out a lot of her floating crew for mission specialists...
Does that mean that the crew she was stuck with for seven years were all mission specialists in hunting and killing Maquis?
No wonder they weren't frightened by living with terrorists.
That's like a cat being afraid of a mouse.
They were all Starfleets version of Homeland Security.