Demand forecasting

Walmart is a pioneer of inventory management and demand forecasting, operating a near zero inventory environment with frequent replenishment. Given that supply chains are becoming more and more global in character, what do you think are some of the issues Walmart faces and how are they able to overcome them?

OR

One of the issues that is important to implement in a supply chain is trust. Discuss the main challenges of implementing trust globally between partners of different cultures and mindsets. How do we overcome these challenges?

Instructions
Your initial reply should be at least 250 words not including references which are required to be in current APA