The planning phase is the stage that comes into play immediately after authorization and initiation, and it is critical to the success of your project. During planning, your focus is developing the roadmap your project team follows throughout the project's duration. In addition to developing a project management plan, this is the time to define scope. It is this piece, defining scope, which seems to cause the most trouble during planning. Inadequate scope definition leads to a host of issues. Read on to discover its impact, solutions, and how to implement those solutions.