Yahoo CEO Marissa Mayer broke her silence on the decision to scrap working from home for her staff at the Great Place to Work conference in Los Angeles.

Speaking at the forum for human resource professionals, she reiterated the company line on the telecommuting decision. "It's not what's right for Yahoo right now," she said, according to Fortune.

People are more productive when they're alone, she acknowledged, but they're more collaborative and innovative when they're together.

Nevertheless, Mayer's "what's right for Yahoo" defence sounded as hollow this week as it did then the move was leaked to the media by a Yahoo employee. How the 200 employees affected by the telecommuting decision were significantly impacting innovation at a company with a workforce of 12,000 raises more questions than Mayer answered at the conference.