This (old) comment by Berman about Trek series and their differences has made me wonder this many times... It's true that if there's no conflict between people, it could be harder for the writers, but aren't there already enough entertainment out there where people just don't get along? Rick Berman: "The problem with Star Trek: The Next Generation is Gene created a group of characters that he purposely chose not to allow conflict between. Starfleet officers cannot be in conflict, thus its murderous to write these shows because there is no good drama without conflict, and the conflict has to come from outside the group.” Friction between different characters is not the only way to create drama as we have seen with many Trek stories. There are a lot of aliens out there to argue with, does it really have to be the crew that can't get along?