kkozoriz1
Fleet Captain
But that still doesn't say why Scotty abandoned his post and transported to the Enterprise with Kirk. It's not like Kirk needed him to come along. He'd only just met Scott. It was written that way because Scotty had to get on the ship for the crew to be complete, not for any logical reason.

In fairness, with less than 3 hours to tell a story every 3 years they can't get bogged down with minutiae or technobabble and ubernerds need to accept that. Nevertheless, there's no reason why the story they do have time to needs to be majorly dumbed down. Kirk should have been allowed to gain experience before being placed in full command. This wasn't a Disney Xmas children's movie - Trek can take itself moderately seriously and still be entertaining.