I was not so concerned with his technical understanding, the modern automobile is a technological masterpiece. But my impression of him is that he is a superb operational manager, not necessarily a great innovator. Microsoft has had a great operational manager for years and has done well financially, but Steve is not the great breakthrough person the company needs.
Personally I'm glad that Mr. Mulally is out of the picture. The company and the investors need Bill Gates at the helm, even in a behind the scenes mode. This kind of tandem arrangement with Elop should have worked with Ballmer but he has alienated the investors. He was an operational master but not the innovator that Micrsoft needs today and has needed for the last few years. And I don't think Mulally would have brought that to the table either.
It is no wonder the stock is tanking, the search for a new CEO has become a circus. Microsoft needs to reach out and do something radical, over the top, perhaps Ray Ozzie or Sheryl Sandberg (as part of a future FB acquisition). Unfortunately a bullet proof balance sheet, great cash flow, low valuation are not going to do it for Microsoft....it is going to take a major push into the new worlds of social media, cloud computing, and new software revenue models (other than licensing).