Are handlers always someone's superior? In my company, managers often have technical people under them that make more and are of a grade equivalent to director. Similarly large projects are lead by people who are lower ranked than some of the experts working it. The experts have the responsibility to make sure the project lead adjusts whenever they find issues that require more work to resolve. Leadership isn't always who is in charge of who, sometimes it is who is in charge of what. And this what looked like it is off the books.
Or it is just that Worf took the assignment out of interest and doesn't care who leads it.
This is true, but I think they need to be capable to lead a ship. Didn't Troi have to pass command tests to be a commander? I would expect the rank of Captain requires demonstrating the ability to be a Captain of a small ship under some minimal set of challenging scenarios. Worf was commander of the Defiant during a war so he has that.
The rank doesn't give them command of a ship, but it has to mean that in a pinch, they could be given a command.
Well, I remember something very cool from the DS9 novels. Elias Vaughn was a commander but his work for Starfleet Intelligence was so deep that they kept him at commander rank to keep a low profile, while in the meantime his authorization levels were higher than most admirals. Perhaps the same thing happened to Ro.
And yes, ofcourse to 'pass the bar' so to say, Worf CAN command a ship. His posting is just not that of a commanding officer.
Also, pet peeve about this episode..... Ro is the family name, Laren her given name. It felt odd that in their sharing moments, Jean Luc kept saying Ro instead of Laren.
BTW, fun fact....
In the DS9 novels, after the war, Ro got a commission in the Bajoran militia and became Constable on DS9. When Bajor finally joined the Federation and Militia officers could join Starfleet, she was considering leaving all together. She and Picard had interacted at that time, he was aware of her being their. She had all but decided to leave, but it was a box that was deliverd to her that changed her mind.
The box held two things.... A Starfleet uniform, security division and a note that said 'In case you needed encouragment. JLP'.
I cried a litte at that. She rejoined the Fleet. Several years later, she was in command of Deep Space Nine.