http://images.bwbx.io/cms/2014-04-17/0417_castro_970-630x420.jpgPhotograph by Tobias Hase/AP Photo

Yahoo's recently fired chief operating officer, Henrique de Castro, left the Internet company with a severance package of $58 million even though he lasted just 15 months on the job.

 

The disclosure in a regulatory filing Wednesday may lead to more second-guessing about Yahoo CEO Marissa Mayer's decision to hire de Castro as her second-in-command in October 2012.

 

Mayer dumped de Castro in January after concluding he wasn't executing on her plan for reviving Yahoo's lackluster ad growth. De Castro had been in charge of ad sales.

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