While he has only been CEO of Yahoo for less than five months, in the next several days Yahoo CEO Scott Thompson is facing perhaps the most critical moment of his short tenure.

According to sources with knowledge of the situation, the board of Yahoo is not likely to take long in assessing whether he will stay or if he will be let go, due to a controversy around how a non-existent computer science degree got on his bio and also in Yahoo regulatory filings.

A special committee of independent directors is now investigating the matter, including trying to assess the damage has had on Thompson’s ability to lead the Silicon Valley Internet giant.

How quickly the board moves is likely to be a sign of their intent. If within the next days, it is likely to let the former president of eBay’s PayPal payments unit go and replace him with a current company exec; if it waits longer and shows some public support of him — which the board has not done since the scandal erupted — Thompson’s chances are better that he will only be given some sort of censure.

One important task is also closely considering the impact of possible legal problems related to Thompson and others signing documents with the Securities and Exchange Commission that were not accurate.

One thing is clear from interviews with multiple sources, many members of the board have not been happy with how Thompson has handled the matter since activist shareholder Daniel Loeb of Third Point uncovered the problem a week ago.

While first tossing the borked bio as an “inadvertent error,” Thompson was then largely silent about the issue with staff, despite being in close meetings with them, which caused stress among key execs.

Then, he made a public announcement in which he apologized for only the “distraction” caused by the incident and not the error itself as some had hoped he would.

Yesterday, apparently feeling it was time to try to explain things face-to-face, Thompson made another attempt to explain what happened in two separate meetings with his direct reports and then his senior staff, apparently trying to get through to employees that he did not fake his resume nor did he give an inaccurate bio to Yahoo when he was being hired for the job earlier this year.

Thompson thought it was time — now that the board investigation was underway — to answer questions directly, said a source.

Among other things, Thompson gave a somewhat convoluted explanation that it appeared in his bio due to a misunderstanding during an interview with a headhunting firm. And that he never noticed it once it proliferated And that when an NPR interviewer asked him directly about his CS degree, he did not want to correct her in mid-discussion — although others report he said he did not hear the question fully.

Sources said Thompson — who is on the midst of initiating changes across a large and troubled organization, after laying off 2,000 employees — thought the sessions went well, that he clearly communicated that he was taking blame for the problem and its repercussions. Those sources also noted that he received support for doing so after the talks.

But, more than a dozen others I interviewed who were listening remotely — some of whom I sought out and some who contacted me directly — thought Thompson’s complex explanation was deeply problematic and that he tried to foist the blame on others rather than on himself.

Every one of these people expressed the need for him to step down to allow Yahoo to move forward.

What the board thought about the performance is still not clear, said sources, but things are coming down to two distinct scenarios.

The first is a quick parting of the ways with Thompson, within days, either for cause or via a negotiated settlement. Others at Yahoo involved with perpetuating the mistake in the bio are also at risk.

This option is perhaps the more likely at this moment, unless the scandal dissipates and employees continued rancor over the situation can be assuaged soon.

In this case, sources said, Thompson will be replaced by a current board member or a member of the top staff. When directors fired Carol Bartz last fall, CFO Tim Morse became interim CEO and he is one of the likely candidates for the job again.

The second scenario centers on needing Thompson to complete a number of complex transactions related to the sale of Yahoo’s Chinese assets and its re-negotiations with Microsoft over its troubled search partnership, among other things.

In that case, Thompson will be censured in some manner by the board and will also probably have to endure some punishment for allowing false regulatory documents to be filed by Yahoo. Others at Yahoo will also be subject to the same treatment in such an outcome.

How will it turn out?

Only board member Patti Hart has so far paid for her faulty vetting of Thompson, stepping down from the board earlier this week.

But whether she will be the only shoe to drop in what has turned out to be a bizarre wildfire that as raged across Yahoo’s troubled landscape remains to be seen.

Thus, most definitely watch this space this weekend.

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• They Shoot Yahoo CEOs, Don’t They? But Not Without a Really Smoking Gun and a Much Stronger Board.
• Yahoo’s Thompson Asks Employees to “Stay Focused” — Except Not on Him
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• Yahoo’s Board Will “Review” Resume Discrepancy of CEO
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One of Yahoo’s biggest long-term investors, Capital Research and Management, which owns more than 10 percent of the company in two different funds, is leaning toward voting for the slate proposed by activist shareholder Daniel Loeb of Third Point, in the wake of the controversy around the botched bio of its new CEO Scott Thompson.

“Having a CEO with that hanging over his head is really a problem going forward,” said one person with knowledge of the situation. “It’s hard to pretend this is not a problem.”

While sources said Yahoo’s longtime institutional investor — which currently holds large stakes via its Capital Research Global Investors and Capital World Investors funds — is not likely to go public with their voting choice until close to the annual meeting, which will take place sometime this summer.

But its fund managers have told key Yahoo board members of their grave concerns over the situation.

Ironically, in the last proxy fight showdown with Carl Icahn, Capital removed its support of Yahoo’s slate too and was an important influence to many major changes at the company.

Such a move is problematic for Thompson, since the rejection of another big shareholder at its upcoming annual meeting will keep the unusual issue and right in the middle of a noisy proxy fight.

A special committee of the Yahoo board is investigating the situation — in which a fake computer science degree somehow got on the resume of the former president of eBay’s PayPal payments unit and later into official Yahoo regulatory filings.

The problem was uncovered last week — unfortunately for the Silicon Valley Internet giant — by Loeb, who has been banging away on Yahoo since.

A trio of independent Yahoo directors is looking into the mess, with a focus on how that happened, whether anyone at Yahoo knew of the inaccurate bio and how it got there in the first place.

Also of great concern, is how Thompson could have not seen the error in the many years it was on the Web site of eBay and also how he approved a bio that had the inaccuracy in it when he was hired by Yahoo in January.

Worse still, in a 2009 interview, he clearly did not say he did not have such a degree in with a radio show host when directly asked about it.

“It’s a little hard believe an executive of this level would have missed such a thing, when he had so many opportunities to fix it,” said one source. “And, if he did overlook it that many times, that’s a problem too.”

In fact, according to a report earlier today by Business Insider that I also confirmed, Thompson told employees today in two separate meetings that he did miss the error since it was placed there — inexplicably — in 2004. In the meeting, he blamed a low-level headhunting staffer who added it incorrectly, an error that then proliferated.

Thompson also said he did not provide a resume to the company in his hiring process — say whaaaat, but true — although this still does not absolve him from the original error.

As to the interview: Thompson said he did not want to be rude and correct the host of TechNation, Moira Gunn, after she clearly asserted to him he had a computer science degree as part of a question on his qualifications. Others present at the meetings said he said he did not hear the question.

But, in an video interview with me yesterday, though, Gunn said she and Thompson discussed a computer science education in a way that left the clear impression that he had obtained one.

While Thompson’s excuse may beggar the imagination of some, it’s his story and he’s sticking to it. In all seriousness, his complete lack of willingness to take responsibility for the error — even if it was not his fault — itself is a little startling.

Because what’s not clear is how the bio was miraculously correct in eBay’s official filings and also if it is plausible that he never saw the mistake.

Numerous communications execs at Internet companies told me that it was unusual for a high-level exec not to pay close attention to information that went out about them, especially in legal filings. In addition, just as many execs are made to check and swear on their bios that go into such documents.

In fact, it was Thompson’s job to make sure the things written about him were correct at all times. As CEO, as a major Silicon Valley player pointed out, he is required by federal law to personally certify Yahoo’s Securities and Exchange Commission filings. Violations of these rules carry financial and also potential criminal penalties.

Sources said the board is worried about that credibility issue too and it puts Thompson in an ever-dicier position. Noticeably, the board has yet to make a public statement of support for him on the issue.

Also a major worry for the directors is the mostly negative response to the situation from Yahoo employees, who are deeply upset that Thompson’s error was not caught and that he might not be treated in the same way as anyone else who turned in a false resume, whether it was by accident or not.

A Yahoo spokeswoman told me last week that there was also support internally for Thompson, but in many dozens of interviews I have done with Yahoo employees and a continued monitoring of internal bulletin board, the tone is not in his favor by any means.

Like I said, it’s a dicey time to be Scott Thompson right now.

RELATED POSTS:

• Yahoo’s Parting With Thompson Will Be for “Cause” (a.k.a. CSLie)
• Ross Levinsohn’s Yahoo Plan: Back to the Future
• Here’s New Yahoo CEO’s First Note to Troops! (The Leaking-Internal-Memos-to-ATD Policy Remains in Effect As Usual)
• Yahoo Officially Confirms ATD Report on CEO Changes and Proxy Settlement
• Meet the Man I Call “The Hair”: The Video Stylings of Yahoo’s Newest CEO Ross Levinsohn
• Will Thompson’s Ouster Mean a Yahoo-Facebook Patent Settlement Too?
• Exclusive: Yahoo’s Thompson Out; Levinsohn In; Board Settlement With Loeb Nears Completion
• Heidrick & Struggles Slaps Back at Thompson’s Yahoo in Blame Game Over ResuMess
• Is He In or Is He Out? Crunchtime for Scott Thompson at Yahoo.
• Not So Scott Free? Yahoo’s Other Big Shareholder — Cap Re — Leaning Toward Supporting Loeb Over Thompson ResuMess.
• Tech Nation’s Gunn Says She and Yahoo CEO Discussed Their CS Degrees Before 2009 Show (Video and Audio)
• Loeb Calls Again for Thompson Firing From Yahoo, as Former eBay Boss Supports Him
• Place Your Bets: Will Loeb Drop Another Bomb on Yahoo at Vegas Confab Later Today?
• Exclusive: Yahoo Director in Charge of Botched CEO Vetting to Step Down From Board
• CEO Says Sorry to Yahoos for Borked Bio “Distraction” — But Will Mea Culpa Work Without an Apology for Error? (Memo)
• Buffett Comments on Trust Issue in Yahoo CEO BioGate: “You’ve Got a Problem”
• Loeb Lobs Lawsuit, as Expected, at Yahoo’s Borked Bio Mess
• As Yahoo CEO Reaches Out to Top Staff, Board Meets to Weigh “Options” (I.E., Deciding Who Gets to Take the Borked Bio Blame)
• Yahoo Should Expect Incoming Lawsuit Lobbed by Loeb Tomorrow on CEO Hiring
• They Shoot Yahoo CEOs, Don’t They? But Not Without a Really Smoking Gun and a Much Stronger Board.
• Yahoo’s Thompson Asks Employees to “Stay Focused” — Except Not on Him
• In 2009 Interview, Yahoo CEO Does Not Deny He Has a CS Degree, and Calls Himself an “Engineer” (Audio)
• Yahoo’s Board Will “Review” Resume Discrepancy of CEO
• How Did a Phantom CS Degree Get on CEO’s Bio in SEC Filings? Yahoo’s Not Saying.
• Yahoo’s Response on CEO’s Computer Science ResumeGate: “Inadvertent Error”
• Dan Loeb Alleges “Discrepancies” on Yahoo CEO Scott Thompson’s Resume Related to Computer Science Degree

In fact, Bartz practically sounded like a gushy “Entertainment Tonight” flunky when talking to Wall Street analysts about Yahoo’s Oscar news, games and other offerings. She proudly noted the site’s efforts generated more than a billion pages views.

There will be more of that, it seems, with the elevation of Yahoo exec Sam Silverstein (pictured here) as head of its special events coverage. Sources said it will be a major area of emphasis, given obvious advertiser interest.

It’s all part of a lot of dramatic changes being made in the media unit at Yahoo, which is run by its newish Audience head Mickie Rosen.

Previous to his new duties, Silverstein has been mostly focused on major sports events for Yahoo, but has also been managing content on its front page and in tech and green arenas.

The move to taking over more comes after Lawrence Yee–who led Yahoo entertainment efforts and was once the managing editor of its omg! celebrity site–headed to TMZ.com, the competing and much sassier celebrity site, owned by AOL. His new job is as managing editor of its TooFab site, TMZ overlord Harvey Levin confirmed to me.

Also gone recently is Annette Cardwell, who was managing editor of Yahoo’s Shine women’s site, who is now working as director of digital content and games at Future US, according to her LinkedIn profile.

Now it will be up to Silverstein, who is well-regarded at Yahoo, to run the upcoming Royal Wedding coverage by himself.

William and Kate, as well as Bartz, will be watching.

Oh, it’s coming.

According to several sources, and as has been widely expected, Apple will once again be holding its annual autumn special event, possibly closer to mid-September this time.

Apple (AAPL), which has had a fall hello-there confab every year since 2005, waited until August 31 last year to announce its “Let’s Rock” event on September 9 at the Yerba Buena Center for the Arts Theater in San Francisco.

There, CEO Steve Jobs, in his first public appearance since his medical leave of absence, let loose with a bunch of mostly music-focused features.

That included introducing iTunes 9, as well as home sharing, Genius mixes and some updates of the iPod.

“I’m vertical, back at Apple and loving every day of it,” said Jobs last year.

Well, he’s still standing, but he has definitely not stood still, launching both the iPad and the iPhone 4 since then.

Still, because it is Apple, speculation is running high about what the iconic tech company will unveil next.

And most of it centers around the blinging of the iPod touch to bring it into line with many of the features on the iPhone.

That is likely to include front- and rear-facing cameras, which would allow the device to use FaceTime, Apple video-calling software that works over Wi-Fi.

With Jobs promising Apple would release the FaceTime protocol as a open industry standard, combined with the company’s ongoing skirmish with Google (GOOG) in the smartphone space, wouldn’t it be nice to have all those iPods turn into phones?

There could also be an A4 processor in the iPod, which will give it even more oomph.

Other rumors run the gamut, such as a new cloud-based, streamy rethink of Apple TV (possible and exciting), a smaller iPad (silly and unlikely) and a streaming music service (useful and most likely).

Or, because it is Apple, something else.

Oh, one more thing: It goes without saying that Apple PR majordomos passed on my perfectly reasonable request for the entire detailed schedule, including slides, for any special event in September.

Here are some other options, via Jimmy Kimmel’s post-finale special. A little disappointing that there’s no Bobby Ewing dream season reference here, but whatever. And if the YouTube link here goes dead, let me know and I’ll try to find you another one.