Comment by bluGill

I can find countless examples of this both ways. Some people are great CEOs able to turn around a company/industry they knew nothing about before. However there are a lot of bad CEOs out there. And being in a company/industry for decades is a good way to turn a bad CEO into a mediocre one which is an improvement I guess. Sadly I have no clue how to make a good CEO - and see no evidence anyone else does.