I remember a long time ago reading a comment about business schools basically teaching the same: you have a large company which is inefficient, so new managemen

I remember a long time ago reading a comment about business schools basically teaching the same: you have a large company which is inefficient, so new management comes in and decides to split it into multiple companies that do different things; then at some point, each minor company is inefficient, so they merge with other companies to achieve scale benefits. Repeat forever.