An idea occurred to me reading another thread, but what if the PTB had decided to really shake things up in S4, by axing a couple of the actors throughout?
In "Scorpion" they go ahead and kill off Kim, bringing Seven onboard and having her essentially taking over for him at Ops (in a proper Starfleet uniform). During this episode, Neelix then starts training with Tuvok to become a security officer. Then in "Year of Hell", Chakotay sacrifices himself to save Voyager and the timeline.
Tuvok becomes the new First Officer with Neelix finding himself at Tactical. Whilst down in the mess hall, Chell becomes a recurring character who is the ship's new cook (who wouldn't want 'plasma leek soup'?). Kes takes on more of the role of ship's morale officer/counsellor as well as being the medical assistant.
In "Scorpion" they go ahead and kill off Kim, bringing Seven onboard and having her essentially taking over for him at Ops (in a proper Starfleet uniform). During this episode, Neelix then starts training with Tuvok to become a security officer. Then in "Year of Hell", Chakotay sacrifices himself to save Voyager and the timeline.
Tuvok becomes the new First Officer with Neelix finding himself at Tactical. Whilst down in the mess hall, Chell becomes a recurring character who is the ship's new cook (who wouldn't want 'plasma leek soup'?). Kes takes on more of the role of ship's morale officer/counsellor as well as being the medical assistant.