Doesn't that sound like quite odd that you'd have one guy doing two jobs? Especially when you consider that the Executive Officer/First Officer's job is really demanding (on real ships at least), and Spock seems to always be at the Science Console (not like he's the F/O and the Science Head, who occasionally is working the science console, and a Junior officer or two is/are doing the job predominantly)...
At least in Phase II, the Enterprise had a dedicated F/O or X/O (CDR Willard Decker), and a dedicated science-officer (Xon) though it never aired. Star Trek TNG though also had a dedicated F/O.
CuttingEdge100
At least in Phase II, the Enterprise had a dedicated F/O or X/O (CDR Willard Decker), and a dedicated science-officer (Xon) though it never aired. Star Trek TNG though also had a dedicated F/O.
CuttingEdge100