Re: Why didn't Chekov ever make Captain?
^Which is what I think should have happened. It would have made for a touching scene on the bridge when Kirk decided to head to the deflector control room. I could easily see him saying to Chekov, "That's your
chair now, Pavel. Take it."
"He clapped his captain—his friend—on the shoulder. Yes, this man was very much like James Kirk, in all the ways that mattered." --Christopher L. Bennett-- Star Trek: Mere Anarachy, The Darkness Drops Again