The problem is that too many IT departments think their primary task is to control the network and IT resources without much regard paid to what other departments are trying to accomplish with those resources.
That's what the fuckups always say. I worked for a web design/hosting startup as the network manager. The boss' buddy set up an FTP server and it immediately got owned and we became a warez site. We don't want control of this stuff because we're control freaks. We want control of this stuff so that someone else doesn't get it horribly wrong.