The Extreme Project Manager (EPM) stays at a high level, and understands the big picture, at the same time being able to call the shots like a military commander. However, there are certain things, which can affect the general schedule, and the EPM must be aware of them at a relatively acute level. Particularly, I am referring to Critical Path Method (CPM) and Project Evaluation Review Technique (PERT). The EPM will use these analyses in a slightly different way to stay at a certain level. Wal.