Spock/Uhura Fan wrote:
If your audience has to do your work for you, then you’ve already failed as a writer/producer.
There is a short scene where Kirk ask Chekov about him following Scotty like a puppy for the last months.
There, mission accomplished.
The audience learned everything they need to know to accept Chekov in engineering.
Ah, yeah, okay. So, remember, if you ever need major surgery to let the fresh intern do it because he's bright and he shadowed the head surgeon for a few months... Makes sense.
Me personally? I'm going with the next best skilled surgeon that works in the surgery/operation department and has been doing it for years.