VOY used a lot of leftover TNG scripts, due to the Producers never being able to agree on what kind of show to do and them more or less being rushed into production.
VOY really should've come after DS9. Just use Romulans as the second crew and have VOY be investigating missing ships along the Neutral Zone.
Or just have a lot of the Starfleet crew be killed by being pulled to the DQ and have them be replaced by various DQ aliens being held on the Caretaker's Array. That would give them a more immediate connection to the DQ and better ways of fleshing it out.