I'd just like to add that it's really impossible to over state how important strategic procurement is in supply chain management. I used to work in the industry, and let me tell you, when the procurement process was off, everything was off!
Though this is was before the days of all that strategic procurement software -- I really envy you all who can keep your supply chains organized that way. I know some of the software even lets you observe the interactions between your supply chains -- I would have loved that! I bet it saves a ton of time and money.