When I ran the Beck-replaces-Van Susteren scenario by sources at Fox, I was told unequivocally that it won’t happen, in part because Fox News chief Roger Ailes would be reluctant to have a prime time lineup consisting solely of men. Maybe. On the other hand, Ailes has never concerned himself much with political correctness in other contexts, and was happy enough to do away with a different sort of balance when he opted to let the network’s only prominent liberal, Alan Colmes, depart without a replacement.