In an IT project, for example, let's say you are in charge of the rollout of new computers and rearranging the workstations. You would need to be clear on the requirements first, and you would have to assess if the budget is sufficient for all the required resources and activities you will need to execute. It's your project management knowledge and experience that will aid you in completing the required tasks correctly.
You may have had experiences where you felt that you were clear on the goals and direction of the project. But depending on where you got the information, and if you don't understand how a particular organization operates, you might be going in the wrong direction.
No matter how much project management knowledge or experience you have, if you don't have knowledge of or experience with the stakeholder or project owner, you will end up failing or negatively impacting the business.
While this might seem like common sense, my experience shows that many people are struggling and looking for creative and advanced solutions to something that is simple. They spend countless amounts of energy and time to figure out a complex solution rather than just looking at the obvious.
In reality, they are missing something in their knowledge, experience or understanding of the project goal or direction.
Use examples from your life to validate this for yourself. Look at an area where you are actually having trouble or an area that is not working as well as you'd like it to. Something is likely missing in your knowledge, experience or project comprehension whether you want to admit it or not.
Have you ever been unsure of what to do in a project? Was it because you were missing something in one of these key areas?