What it taught me is that effective organizations invest heavily in training newcomers how to do their jobs / processes. I see this everywhere; when I walk into a business and something's "just off," it's almost always because management is dropping the ball on training newcomers how to do their jobs.
In my specific case, I was having trouble getting good bug reports, and my teammates were struggling with poorly written tickets. I had to take the time to explain what the process was for handing off work from QA to developers. Things moved much more smoothly after that. (IE, I had to explain that all tickets needed steps to reproduce, except in very specific circumstances.)
https://www.amazon.com/Myth-Revisited-Small-Businesses-About...