According to AllThingsD, Schneider had wanted to leave for some time, but Bartz persuaded her to stay on. Pitaro is leaving for another company while Ko may have lost out in a power struggle with Yahoo!'s new chief product officer Blake Irving, it said. Bartz was brought in last year to turn around Yahoo!'s fortunes after the previous chief executive, co-founder Jerry Yang, rejected a takeover offer from Microsoft. But Yahoo!'s stock price has remained largely stagnant and there has been an exodus of executives to other companies since Bartz took over in January 2009. AllThingsD said some members of the Yahoo! board held an emergency meeting this week to discuss management issues, with speculation the firm will hire a second-in-command to Bartz to take over when her contract is up in 18 months.