Re: The Continuity and Serialization of Voyager
Neelix probably had more cross-training knowledge than Harry seemed to, so he easily could have been made a Lieutenant or Lt. Commander. And Seven was the equivalent of a civilian with a bridge duty station. Voyager could have easily wound up looking like a small mom & pop store where everyone working there is from the same family and has an executive title.
Dr. Howard, Dr. Fine, Dr. Howard: For duty and humanity! --Men in Black (1934)