The top Yahoos are heading for the exits… Following right on the heels of departure announcement by top mobile exec Marco Boerries and Yahoo News head Neeraj Khemlani defection to Hearst Corp., CFO Blake Jorgensen has handed in his resignation as well, according to an SEC filing. Yahoo (NSDQ: YHOO) says that it is looking for a replacement. In the meantime, Jorgensen will stay on for a “transitional period.” Jorgensen has held the CFO post since coming to Yahoo in June 2007. He was previously COO and co-director of investment banking at Thomas Weisel Partners, which he co-founded in 1998. 

SEE ALSO: Updated: Yahoo’s Shakeup Continues: Top Mobile Exec Boerries Leaves

In a presentation at the Goldman Sachs Technology and Internet conference this week, Jorgensen appeared to clarify CEO Carol Bartz’ statements about doing a search deal with Microsoft (NSDQ: MSFT). Jorgensen said Yahoo “wasn’t opposed” to a search-ad deal with Microsoft, whether it’s a partnership or a sale, though it would be difficult to iron out the natural complexities.

Staci adds: So much for all the org chart prognosticating that had Jorgensen staying on as part of new CEO Carol Bartz’s team despite his strong connections to Sue Decker, Yahoo’s previous CFO who left the company as president in January.

Update: Barclays’ Doug Anmuth weighs in with a quick client note, pointing out the flaw in having Jorgensen represent the company Wednesday at an analyst meeting when he was on his way out the door: “we think some investors viewed him as potentially providing some stability to the management team.” Anmuth isn’t surprised as much as “increasingly concerned about Yahoo!‘s thinning management ranks & about who internally will help guide new CEO Bartz as she moves deeper into the Internet space & soon makes critical strategic decisions for the company.”

—UBS’ analyst Ben Schachter, who admits to being a “Jorgensen fan,” also said he didn’t see the CFO stepping down anytime soon—especially since Jorgensen had just met with the investment banking firm to discuss Yahoo’s future. That discussion now seems a bit disingenuous, considering today’s announcement. As to the reorg: “We expect more significant restructurings and divestitures of various businesses will occur in the future as YHOO focuses on its core businesses. Also, while the timing is uncertain, we still believe a search deal with MSFT is likely.”