As things stand there are at least three directors; Walsh, Turrini, and Pierce, and likely a fourth. The action of the audit committee was against management not directors. I don't believe the committee has the power to remove a director, although I am sure the court would if the company brought the action before a judge.
If Williams won a temporary order of some sort he would be the fourth, if not it is Carlo di Colloredo-Mels would be unless the judge removed both of them until the hearing. I don't believe Lance LaBauve is a director, although I really don't know what an "Executive Director to the Board of Directors" actually is, but I have a suspicion that it is not really a director.