In the past, I proposed that each division head is a two stripe position. The First Officer is probably the only other two stripe position. There are three divisions on the ship: Red = Ship Services (includes Engineering and Security); Blue = Sciences (includes Physics and Life Sciences); and Gold = Operations (Command duties like Helm, Navigation, Weapons, Supply, Personnel, Records, etc.). Usually, the senior most officer in each division is its head. Two stripers for Season 1 (not including
WNMHGB pilot):
- Lt. Cmd. Spock: First Officer
- Lt. Cmd. Finney: Operations Division Head plus Records Officer
- Lt. Cmd. Giotto: Ship Services Division Head plus Chief Security Officer
- Lt. Cmd. Spock: Sciences Division Head (hence the Blue shirt)
I image that most First Officers come up through the Operations side, so for them, they usually wear a Gold shirt. Sometimes they also take on the Operations Division Head job, too, still making them two stripe Gold shirts.
As an equivalence in
WNMHGB:
- Lt. Cmd. Spock: First Officer
- Lt. Cmd. Spock: Operations Division Head (hence the Gold shirt)
- Lt. Cmd. Scott: Ship Services Division Head plus Chief Engineering Officer
- Lt. Cmd. Piper: Sciences Division Head plus Chief Life Sciences (Medical) Officer
As an equivalence in
The Cage:
- Cmd. Pike: Captain
- Lt. Number One: First Officer
- Lt. Number One: Operations Head plus Helmsman
- Lt. Unknown/Casualty: Ship Services Head
- Lt. Boyce: Sciences Head plus Chief Medical Officer