Years ago I read a book called The 12 Hour MBA Program. I have never met an MBA who knew something important about business that wasn't in that book.
I read a book once about the alphabet. I too have yet to meet someone that speaks English that knew something important that didn't use the pieces found in that book.
Microsoft has made keyboards, mice, and other products for years, in addition to printing and distributing their software since the beginning. Physical products aren't new to MS.
You're right! That is why they were so successful with the Kin. No wait... Oh there is the Zune... crap. Surface RT?
So someone who knows how to manufacture physical products automagically knows how to make software? Is this part of the powers of the Holy Snake Oil that MBAs are anointed with upon graduation?
You obviously don't know what an MBA teaches.
Microsoft is trying to become a physical product company (along with services), so Alan Mulally is a very good choice. You don't need to know how to make something to manage the people that actually make it. You cannot be too arrogant and not listen to them, but if tempered it can work out better. If
Scientists will study your brain to learn more about your distant cousin, Man.