I believe that IT needs to allow enough room to allow users the ability to try services and products out that can help them do their job. IT is a bad place to make decisions on workflow applications. It does much better defining the technology necessary for a smart decision.
For example, when IT is not involved with the purchase of a major database application, I have seen 2 project purchase vaporware. IT is used to seeing and sniffing this out. However, IT is not good when Skype can save a company overseas telephone costs.