I had a meeting with a pipe mechanical company yesterday near St. Louis and spent most of the time discussing how their purchasing process works. It soon became clear that they were a typical "reactionay" company where requisitions were usually an emergency and there was rarely time for the competative bidding process to take shape.
Yes, there are going to be circumstances where you dig a hole expecting to find pipe A but instead find pipe B. You had expected to work on pipe A, had the materials for pipe A, and now find yourself stuck until you get the proper pipe B items can arrive to the jobsite. This happens, and nothing will ever change.
However, all too often a contractor waits until the morning of opening that hole before he orders the excavator, shovels, safety supplies, trenching equipment, and radios. Why? It was pretty clear yesterday that digging a hole was required. Wouldn't a little bit of planning be prudent?
Sometimes I think Critical Sourcing is victim to its own success. Because we successfuly manage our suppliers and have a grasp of what can be acquired with short notice we have managed to get the excavator, shovels, etc quickly and the superintendent never realized he was on the brink of not working that day.
Also, it greatly limits the pool of suppliers a purchasing agent can use if things are always an emergency. A supplier may keep a warehouse of tooling and supplies that can ship to a jobsite, but there is no chance of getting items same day or first thing next morning. Many of those suppliers have competative prices that you are locked out from taking advantage of. You are stuck with only the local suppliers when you are dealing with last minute orders.
So, Supervisors... let us save you some money and ensure you get what you really need. Please don't wait until the last minute before letting us know what you need to keep working. Thanks!