Here are some of the items that will help shape the week that lies ahead. 1. Yahoo's new employee orientation: After a few months of having its CFO serve as interim CEO, Yahoo ( YHOO ) finally has a new CEO. Scott Thompson -- hired away as the head of eBay's ( EBAY ) PayPal -- begins his term as Yahoo!'s CEO Monday. The market didn't exactly love the move, but it's not Thompson's fault. Speculators figured that Yahoo would be acquired soon or score the mother of all paydays by unloading its Asian assets. Bringing on a new CEO seems to indicate that Yahoo! has its sights set on staying a swinging single. It won't be easy. Revenue growth has been sluggish at Yahoo in recent years, and Thompson doesn't exactly have a whole lot of experience in generating content-driven traffic or online advertising. However, it's not as if folks were beating down Yahoo!'s door to run the company given the way that its past few CEOs have fared.