Not sure that "helmsman" would count as all that specialized.
I was principally taking issue with the notion that white was exclusively reserved for the commander and first officer of a starship. Which is plainly not true.
hat really started with Riker and TNG, when "first officer" became a job in its own right rather than a secondary role taken on by the science officer or helmsman.
That is actually an important good point on this topic, most first officer's we've seen up to TNG also have some other job.
I wish they had actually released Fletcher's notes so we could know what he was thinking.
Yes. I agree with that; this is something fans should get to see.
It does not speak well for the rank system of these uniforms that Valeris rank went unnoticed by me even in a close up. Is that Ensign, rather than LT, then?
EDIT: I took another quick look at ST:6 and see that she had LTCMDR ranks on. Curiously, this reflects the fact that Tuvok is called Lieutenant while wearing LTCMDR ranks on early episodes of Voyager.
Even more curious is the fact that in ST:6, the helmsman is in sciences (blue?/grey?) not white. Since I have read it is generally accepted that any detail differences between ST:6 and "Flashback" are that "Tuvok simply did not remember things correctly," then I guess this example of an officer in a white sweater can be discounted.
In a way that is unfortunate as an LT helmsman 1st officer would be like "The Cage," in my view, and help imply that in this system there are few officers that would wear white, most roles having been assigned to wear blue/grey or gold. (The helmsman is also a LTCMDR in ST:6)
I did find one enlisted crewmember with a white sleeve stripe. I would suggest he is the Captain's yeoman, based on the fact that Kirk's yeoman wore white in ST:5. We know that men in the position can be common, from "The Cage"
Interestingly, in ST:6, Valtane wears a blue?/grey? sweater but his jacket flap is white...