With the stock market in a lather over Hewlett-Packard’s troubled leak investigations, HP CEO Mark Hurd tried on Friday to take control of the situation. But in doing so, he left unanswered key questions about legal representation in the festering matter.

In a brief press conference, Hurd addressed some investor concerns by announcing that Patricia Dunn, the former chairwoman who ordered an aggressive probe of boardroom leaks, would be leaving the board immediately, and that Hurd would be taking over as chairman.