I just finished a big project and those indeed were big spoilers. But also: 7. Difficulty in getting clearer specs when it's discovered the original specs are

I just finished a big project and those indeed were big spoilers. But also: 7. Difficulty in getting clearer specs when it's discovered the original specs are not detailed enough. 8. Decision makers at top (or middle?) having too much grass root visibility and micromanaging the project.