Yahoo's board is already coming under fire, with the first lawsuit to make them consider Microsoft's takeover bid. According to Bloomberg:
The Wayne County Employees' Retirement System of Michigan, owner of about 13,600 Yahoo shares, yesterday sued Yahoo over the bid rejection. In a complaint filed in Delaware Chancery Court, the group asked a judge to force Yahoo to consider takeover offers.
If there are many more actions, Yahoo's board could soon find its position difficult.... And they'll all be up for re-election soon.