It may be unbelievable but many logistics manager, especially in supply chains with multi-country operations don't have a clear view of how is the exact flow of material, info and money. Developing a map of your supply chain might seem really a basic thing but even if it is done at high-level, can make SC decision making much more effective.

Look for example, at this map here. It's about a Fair Trade Coffee supply chain: It clearly shows the suppliers, their offerings and the flow of material and money. You can also click on different parts of it and go more into detail.