While It is important to know the various team roles, this in itself is not enough to guarantee good project results. Project knowledge would not be complete without having a basic understanding of managed workflow. Today, this is commonly known as Project Management.
Although Project Management is a certified discipline in itself, we won't have to go to that level to manage our projects successfully. The work phases involved are commonly used by most of us at some level. We will conduct a quick review to insure that we all have the same understanding.