The following video is from Friday's edition of Investor Beat, in which host Chris Hill and Motley Fool analyst Charly Travers dissect the hardest-hitting investing stories from the market today.

Both General Motors and lululemon athletica announced major leadership changes this week, which has our analysts asking, what's in a CEO? In this segment, Chris and Charly discuss these and other recent CEO comings and goings, and talk about when a new CEO is good news, when it's bad news, and why it can sometimes be very difficult to know the difference in advance.

Then, is Amazon going after Costco next? There are unconfirmed reports swirling in the rumor mill that Amazon.com has its eye on creating a packaged-goods business, known as Amazon Pantry. Should companies like Costco or Wal-Mart, with its Sam's Club business, be deeply concerned on this news? Charly discusses why he sees this as a natural extension of Amazon's business, and why Costco and Wal-Mart will need to be following this story very carefully.

Finally, Charly tells investors why he loves Nike, and why he'll be watching closely when the company releases earnings next week. He and Chris also discuss what the World Cup and the Sochi Winter Olympics could mean for Nike in 2014.