Fuller was the only auteur that actually wanted to work on Star Trek. They should have let him.
The problems started when CBS gave the property to Kurtzman first. I don't see any synergy between Kurtzman's sensibilities and Fuller. If CBS wanted a Fuller-style show they should have put him in charge from the get-go or at least someone who shares a similar vision. Then you add in that Kurtzman is a hack who is himself here-today-gone-tomorrow and you have a show that may feel rudderless.