There's a rule that applies to pretty much anyone in any organization in any industry: if you don't really know what you're talking about, you shouldn't do much

There's a rule that applies to pretty much anyone in any organization in any industry: if you don't really know what you're talking about, you shouldn't do much of the talking. This applies to both sides of any conversation. If IT will listen to and understand customers, and if customers do the same when looking at IT, then things go well. But IT is the type of job where "the same" job description can exist at companies that do radically different things. You may hire IT people that have no background whatsoever in your company's specific area. It is imperative that IT new hires be people who are willing and able to learn a lot. In my experience the "hate" for IT comes only when dealing with people that have no interest in what you actually need: people who are convinced their policy or "solution" is brilliant.