We can Manage MACs with ConfigManager now. Use whatever OS you like. But we all know you will need a Windows VM for any kind of full enterprise functionality. I'm a consultant. I see it all the time. Half the MACs I see in the airport have a Windows VM full screened to perform their work. And when it isn't that, what do I see? Microsoft Outlook, Word, Excel, etc. You may call this "the door falling off of it's hinges, I call it a door that has been open for years. Did you know Apple paid Microsoft to use the ActiveSync client on the iPhone?
My point is, Apple fans can say over an over that their machines are better. They are pretty, I'll give you that. I like the fact that some of the stuff is at the top of the screen. But what about Direct Access? Ease of Certificate deployment? Maybe a little Group Policy? The operating system is not ready for prime time until it is fully integrated into directory services and managed as EASY as a windows device. Yes, I said easy. Windows desktop OS is Cake, and as long as you don't have Automatic Updates enabled (you should not in an enterprise), you read the KB article, and you TEST the deployment with your test users (at least 2 users from each OS build) you will not run into this issue. MS is constantly improving on their products like anyone else.
To recap, Do not say "Okay" to installing prerequisite updates if you don't know which ones they are and you haven't read or tested accordingly.
Thanks,
LvilleSystemsJockey