In my own career doing QC work I found that so many people would never ask for assistance understanding why their work was rejected. They would simply blame me

In my own career doing QC work I found that so many people would never ask for assistance understanding why their work was rejected. They would simply blame me for noticing their errors. That was literally my job, I was the second set of (trained) eyes. I worked with a couple of people who would regularly see more than 90% of their work rejected for processing errors that were easily recognized if they had bothered to look at their own work but they consistently missed these things and suffered because they knew that I was waiting to look at it and if there was a problem they would know about it soon enough. They did no QC at all even though this regularly set them and the project back sometimes by weeks. I would make a point to highlight the problem, describe the source of the problem and detail how to prevent it in the future yet inevitably I would see the same issues all over again from the same people. There was no effort to use any of the QC processes or tools that I set up for them so that errors could be minimized. One person's position was put in jeopardy when they fell so far behind that a big client had to be informed that deadlines would slip. Only then did that person catch me in the hall and ask me to show them exactly how I checked their data, what I looked for, and how they could fix their processes so that their data passed QC. I ended up teaching that person all the things that their job required anyway and they became one of the best performers in the group. I was not hard to reach, difficult to work with, unwilling to teach or assist - people were just unwilling to ask for help since it could imply a weakness in their skill sets and put some of their other work under closer scrutiny. It was a depressing job overall since I always felt like I was the bad guy whose only purpose was to point out all the defects in someone else's hard work. With the final data products they were producing becoming the basis for a client's decision to spend multiple millions of dollars it was important to me to get things right. Good luck with your checklist.