It's also often a way for a new CEO to "prove" to the board that he/she is doing good work to propel the company forward. The key is that they're going through

It's also often a way for a new CEO to "prove" to the board that he/she is doing good work to propel the company forward. The key is that they're going through the motions of "doing big things" rather than truly pursuing the best interests of the company. Not limited to megacorps either. Plenty of smaller companies engage in this behavior.