Its a very minor thing, but how about moving Lt Ferra(the Doff NPC) to the 2nd desk in the office rather than on the couch? It would look more professional and make more sense to have a computer screen in front of him when making assignments than just doing it "off the cuff" on the couch =P
Remember in TNG every now and then, the Enterprise would have to meet up with another ship to get a new officer or other personnel brought on board. Something like that would float my proverbial boat if I requested Doffs while out exploring. Just a ship that spawns in the middle of each sector or sector block, where you go and pick up your new staff. Maybe that's taking realism too far, but I wouldn't mind the quick sojourn.
"For god's sake Jim, I'm a game, not a simulator!"