Have you experienced IT finger pointing? I know that I have (before launching Skyriver IT). In one instance, the IT people told me the network was slow because the ISP was not providing the promised bandwidth. The ISP said that the network was slow because it was not configured correctly. Regardless of where the problem was, the users were the ones that suffered. And, it would have likely only taken one call between the IT people and the ISP to solve the problem.
Why does this happen? In my experience, this happens because IT technicians believe that their job is to support the IT infrastructure, not the users. For many IT people, they believe that as long as they can show that the systems are working, they are doing their job properly.