Stephanie Tilenius, eBay's head of global product and North America, is leaving the company, according to the company's corporate blog. She'll become an advisor to CEO John Donahoe for the next few months and plans to leave the company in early 2010.

According to the blog post, "Having been in her current role for two years, Stephanie says she felt that with eBay's turnaround under way, now was the right time for her to pursue other career ambitions, including opportunities to lead a company as CEO. Stephanie says she's proud of the progress the eBay team has made, and she believes eBay's best days are still ahead."

Stephanie's position will not be filled - Lorrie Norrington will assume direct responsibility for eBay North America, in addition to her role as the global head of eBay Marketplaces.

According to the blog, other changes are in the works, including the creation of a combined global product and technology team to be led by Mark Carges, Senior Vice President and Chief Technology Officer, and a combined seller and buyer organization responsible for ensuring a seamless end-to-end customer experience, led by Dinesh Lathi.