Let me share with you a short e-mail conversation I had earlier today, which perfectly illustrates why users will do anything rather than deal with their IT department, up to and including running their own servers.
Me: Hey IT, what are the video conferencing standards we can support?
IT: Just use Lync - it's the standard!
Me: No, it's somebody else's meeting, and they asked what video conferencing standards we can support.
IT: I don't know anything about this meeting, and anyway it's up to them to send you an invitation you can accept.
Me: Agreed, and they are asking what I can accept, hence my question about which video conferencing standards we can support.
IT: * silence *
As usual, Dilbert is spot-on: I am obviously dealing with Mordac, the Preventer of Information Services.