I read the article hoping for something informed, something from the inside - a leak even. What this is, is rather boring speculation.
I even find the dismissal of Elop as an option curious given that internal structural changes that were made after the acquisition announcement - the akward positioning in the org chart between he and Julie Larson Green seemed to suggest that one of the two of them may be a strong candidate for the position.
Personally as a shareholder and someone whose consulting practice is very much tied to the fortunes of Microsoft - I would love to see Scott Guthrie in charge. Alas this may not be his time up to the plate. Maybe 5-10 years from now the road will be paved for him. He moves from Azure onto something bigger like Office or Windows - continues his success and the reins are handed over.