GE was a weird company with a professional management class that were sort of like military officers. They were lifers and would travel around the country to run factories or whatever. You lived in your little GE town, and the location and size of your house was based in your corporate stature. You may be a plant manager building turbines in upstate ny, and then be promoted to some new role making washing machines in Kentucky.

The problem, like the military, it that it creates an insular and sort of incestuous culture that is hard to control centrally. It was similar to IBM in some ways. Alot of the “genius” of Jack Welch was reverse engineered as some visionary nonsense but was really about killing the old GE hierarchy.

While aiming to be at the top 1 - 2 of the stack is always a nice thing to do. Shutting down established revenue streams to achieve it is equally bad. In many ways it is also lazy. If you won't work on a business to make it the top 1 - 2, you just shut it down. That says better people need to be CEO, especially for a conglomerate like GE.

You are supposed to make money by expanding existing businesses, not by tuning the knobs and dials of the existing ones.