I work in a Software Engineering department for a major company (>3k staff), with over 150 Linux desktop users, and a team of only 3 linux desktop admins.
These guys have things down to a science here, and are far less authoritarian than the Windows Desktop IT team, who won't even let us change our screen saver settings without forcing us to open a ticket, which all stems from security issues and lame IT policies.
Everyone here is an educated and skilled engineer, and is expected to know how to *at least* perform normal day-to-day operations using a linux desktop. The defacto here is Fedora Linux, for many obvious reasons.
All of our engineers have the freedom of sudo to install/configure their system accordingly, within the realm of support. If they decide that they are better-off administrating their machine on their own, then they have free reign to change the root password, and the linux desktop staff no longer has to support their needs. They are then on their own and considered skilled enough to support themselves.
Our Windows Desktop infrastructure is an entirely different story. There is an entire team of ITSEC engineers who are constantly watching the network traffic, and often remotely snooping on users desktops.
Linux is here for those who are educated, skilled, or curious enough to figure it out and use it to their heart's content. Linux is not here to replace Windows or Mac as a desktop, unless you yourself (as I) have chosen to do so.
It's ironic that MS pays Gartner and PC World and all these other 'sponsored' media outlets to spread PR/FUD against Linux-based systems. They'd be better off fixing the bugs in Windows, with those funds, rather than misleading the short-sighted Managerial types who continue to make bias decisions and ruin companies thanks to these lame efforts to secure a market share.