He Was Fired: Here's Marissa Mayer's De Castro Buh-Bye Memo to Yahoo Staff
Here it is, the internal memo to Yahoo staff about the sudden — though it was not sudden, by any means — leave-taking today of its COO, Henrique De Castro, courtesy of one of my 10,563 sources left at Yahoo!
Context & Ripple Effects
Henrique De Castro lasted barely fifteen months in the job Yahoo created for him. When Yahoo confirmed his hiring as COO in October 2012, he was billed as the Google ad veteran who could fix the display business Marissa Mayer couldn't run alone — and the departure chatter dates back almost to her arrival, with executive exits already underway by August 2012 while her team was still being filled in.
The exit itself was flagged earlier the same day in Re/code's report that De Castro failed to move the lagging ad business; what this piece adds is Mayer's own internal memo confirming it to staff. The story traveled unusually far for an HR document — pickups include the New York Times, USA Today, Business Insider, Computerworld, Marketing Land and The Register — which says less about the memo than about how closely Yahoo's turnaround is being scored.
First-order effects
- Yahoo loses the executive hired specifically to revive its display-ad engine, leaving Mayer without a No. 2 and owning the ad strategy she delegated to him in 2012.
- De Castro walks away from one of the richest packages Yahoo has ever granted a non-founder, with his $56 million signing-era valuation now attached to a failed tenure.
Second-order effects
- Every future Yahoo senior hire gets priced against this one — candidates and their agents will read a fifteen-month, top-of-market COO stint as evidence that star imports from Google don't get the runway their contracts imply.
- Mayer's board now faces the accountability question directly: with the ad-fix specialist gone, any continued revenue lag lands on her own operating record rather than a lieutenant's.
Third-order effects
- If the pattern holds — expensive external saviors, short tenures, revolving-door churn dating back years — Yahoo becomes a case study in why turnaround companies struggle to retain big-name operators, pressuring boards to tie such packages to survival metrics rather than signing-day optics.
The trend: Yahoo's leadership ranks keep churning around Marissa Mayer, as the company's dependence on a stalled ad business consumes even the executives hired to rescue it.