A very good friend, who is not a brain surgeon, but designs and plans brain surgeries for clinical trials with the very brain surgeons doing the surgeries. So yes they do think it through and even do entire dry runs through every step.
But they just apply well-known methods. This type of thinking an AI can do, too.
And "getting on with the job" in those professions involves stopping and thinking.
Just like my AI. They also think before and during a code refactoring. There is a gap between my prompt and them taking actions, you could call that "stopping and thinking".