I would argue these are the exceptions that prove the rule. They all have demonstrable leaders that made this happen. Xerox is done, as is AT&T, as those leader

I would argue these are the exceptions that prove the rule. They all have demonstrable leaders that made this happen. Xerox is done, as is AT&T, as those leaders are long gone. Sony is another one that lost their leader and their magic. I would argue Apple is on this route now as we are only now seeing the impact of losing Jobs.