Big companies also fail to keep their own markets with some regularity, the tech companies are built over the ruins of industries that solved the same problem in the days of yesteryear with different tools.

The view of the article seems to be that companies solve problems. The way they solve problems is actually baked in to the structure of the management rather than any individual (sometimes there is an individual like a CEO with enough vision to reshape the management structure to solve new problems, although that is rare). It is also why acquisitions fail so easily - if you take an existing company and graft it under an existing management structure geared to solve some other problem then there is a lot of risk.