Resting Officers

[onelifecrisis]

I'm in the habit now of putting my weapons officer in rest while not in combat, for reasons I assume are obvious, but I'm wondering whether I can do the same for the CE or the NO? I know I can, but I don't know what will stop working as a result. Does the boat still follow the plotted course without an NO? Are there any ill effects at all for not having one (other than not being able to ask for depth under keel, range at current speed, etc)?

Also, what effect does the Command Room efficiency have? You know, the green bar over it? Not that it really matters - one decent officer seems to be enough to max it out - I'm just curious.

Thanks
OLC