Did you do the reading?
If you not only know what to do, but also why it's important to do it, you'll be more likely to actually do it, and to stick with it until you see results.
This is what we typically mean when we say things like, 'I did the reading' or 'I did my homework.'
You know these things--the what and the why--because you did your research. You don't have questions in need of often-cited answers, because you came prepared.
One expects surgeons and physicians to know what they're talking about, enough to explain why they made any particular incision or gave a prescription. And musicians (at least the best ones) are required to know about music history and theory.
That doesn't mean they have to agree with everything everyone has said or does or recommends in theses fields. But being up to speed certainly helps them make the best decisions and observations they're capable of (provided the knowledge available).
So please. If knowing something--the model, the process, the best practice--helps you do your job better, or helps you make more informed decisions, please know about it in advance.
Please, do the reading.
Not because you have to, or because it's expected, or because it's the right thing to do.
But because you can, and because you care.