Ideal Process versus Reality
Matej Latin provides good advice for young designers. Namely, that the ideal process learned from books is not true to life.
[T]he double diamond design process which has been often cited as the design process doesn't reflect reality. It's the perfect ideal that designers strive for but rarely achieve. Designers simply don't have that much control over the influencing factors so a design manager reading through a perfect, cookie-cutter case study, even if it uses the double diamond process, knows immediately that it's fake.
Frankly, I sometimes see advanced designers demanding excessive adherence to process from their reports. I suspect that comes from a lack of faith in their designers, and also anxiety from not knowing every detail of the project. Delegating work means trusting that your staff can handle the job. Overemphasizing a double diamond process (or the related documentation) for every single thing creates a classroom-like environment. It feels less than professional despite being by the book.