I have been in a CEO replacement at my previous job. The owners were not happy with how things were going and replaced him. It was a decision only two or three people on the board participated in, even most of the board had no idea. In public, however, the only information that came out was that the CEO decided that his mission had been accomplished and it was time to look for new opportunities. These people never publicly tell the truth, what you hear on the news is what they want you to hear. The truth is almost certainly something completely different.