Well see that was the issue it wasn't supposed to be a long term mission-just go and capture some Maquis, and recover Tuvok. Presumably Tuvok would have betrayed the Maquis when Janeway arrived and sabotaged the Val Jean or something.The staff though seemed to consist of a single Vulcan Nurse. Granted you got the EMH as a backup and while nobody could predict being transported across the galaxy you still had a 2 week mission and a mission that might lead to some kind of fight. Toss in the fact that Starfleet ships I think are trained to expect the unexpected the medical stuff seems small IMO.
Granted I do kind of like the idea that other doctors might have been elsewere when the Caretaker got hold of the ship, but like I mentioned above you would almost have to think they would have all been in the same spot when they died. KIind of like those pilots in season 1 "Battlestar Galatica" when a missile accidently goes off and kills many of the ships pilots and Starbuck has to train some nuggets.
Jason
So it wasn't like a 7 year mission of exploration just a go in capture and retrieved and go home mission.
Though I think it was implied Voyager would be doing more exploration afterwards the maiden voyage was a pretty simple and seemingly routine operation.