Ooh, I've got one. Haven't seen it mentioned elsewhere: GL saw the marked shift between TOS and TNG and thought it might make a good shift in his own scifi series. TOS is far out in the rough and rude hinterlands. Everything is sort of ad hoc and improvised, the characters and the ship seem utterly on their own most of the time. TNG seems as though it takes place closer to the core Federation territory, everything is neat and tidy and has access to a huge establishment.