> They are almost certainly working to a deadline, or to a series of overlapping deadlines for different projects.

I think this is crucial. Even old hands working on their area of expertise can be compromised by deadlines.

Yeah, I in my experience this is the root of most bad code. People rushing. And it is not even necessarily faster to rush, since often working slow and methodical wins the race. I don't get why we as managers and engineers have just accepted rushing and taking shortcuts as the default. Especially at the big tech companies this constant rush makes zero sense, they have tons of engineers they use very inefficiently.