Mr. Laser Beam wrote:
^On the show, Earth Starfleet didn't have a lieutenant commander rank.
Really? Just because one was never shown on the series doesn't mean it didn't exist.
It's a TV show. Nothing
exists until someone writes it into an episode.
Besides -- ensigns had one rank pip, lieutenants had two, commanders had three, captains had four. How do you fit a lieutenant commander into that?