I'm afraid she'd still have to face speculations that she got the job by sleeping with her predecessor :-(

EDIT: of course I don't find it fair! I'm just afraid that the same misogynist reflexes, which erased her from YC's public history, would have lead to try and disparage her promotion as president.

Of course agan, that's no reason not to promote her; but it would have to be done with the appropriate PR strategy, to defuse such speculations.