a$)$ Consider a Vendor Managed Inventory contract between Walmart and Hewlett$-$Packard where the printer section of Walmart stores is managed by Hewlett$-$Packard in terms of replenishment and inventory management of printers. Discuss at least two points that should be included in such a contract to secure a sustained, sound working relationship between the two companies.

b$)$ Consider a Just$-$in$-$Time contract between a car assembler company and a tire supplier. Discuss at least two points that should be included in such a contract that would contribute positively to the relations between the two companies.