Henrique De Castro

A new report from tech website AllThingsD suggested Yahoo CEO Marissa Mayer is currently ramping up efforts to poach a key Google advertising executive, Henrique De Castro, for either a COO or lead ad role.

AllThingsD’s Kara Swisher, who cited “sources close to the situation” and “numerous sources,” noted De Castro’s silence to his staff on the matter is an indication that her reporting is spot-on:

In fact, after reports surfaced several months ago here and elsewhere that Mayer was interested in him, De Castro told his staff at Google that he was not leaving.

That does appear to be the case now, according to numerous sources.

This past week, De Castro canceled a major off-site for his employees and several attendees who know him well said he was not present at the company’s first night of its annual Zeitgeist event for advertising and publishing clients. The suave De Castro is usually a more noticeable fixture at such gatherings.

When reached last night, De Castro said he would be attending Zeitgeist, but declined to comment further.

While Mayer has not been very successful at luring executives from various tech companies, the report further mentioned Yahoo’s current revenue guru and former Googler, Michael Barret, is reportedly not planning to stay with his search company for the long term. De Castro and Barrett also allegedly do not have the best coworker relationship…

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“Henrique being hired would give him the out he wants,” said one source, according to AllThingsD.

Interestingly, Swisher said the advertising team at Yahoo has had minimal interaction with Mayer since she took the reins earlier this summer. Her focus has apparently been on “engineering and cultural issues at Yahoo.”

Get the full report at AllThingsD.