It would have been nice to see something like in the show E.R., where they had a plethora of minor characters that would occasionally get little bits of characterization...
Like Ensign No-name at the helm, or at the aft science station. We didn't really see that much of Ensign Ro, but she was a person and received a story arc prior to disappearing. Nurse Owaga (sp?) too, she got relatively few lines, but enough to become a character. These minor characters wouldn't have had to be built up to a Chief O'Brien level, something less would be fine.
When Lt. Worf left the bridge, usually some one from the back of the bridge took his place, would it be all that hard to have Worf call them by name "Yo Ramirez, mind my panel."
Right. There were a lot of recurring background characters that never even got official canon names, even though they were named unofficially, like Lieutenant Jae, who is apparently called lieutenant, according to Memory Alpha, despite being an ensign in this image.
The one with the cute haircut that is in about half a million episodes as well as a few of the films, and yet has absolutely no characterization whatsoever. Fleshing out some of the minor characters was a missed opportunity that kind of irks me on occasion. All that would have been needed would have been to give them names on camera, and keep their appearances consistent, to kind of broaden the "universe" so to speak on the Enterprise.