Actually Mr. Gibson was not very liberal at all. He beat on Clinton day after day. This is why his show was dropped. His move to Fox was a good move for both.
There might be something else going on here. Much like what GWB is doing. Moderate then move right. Look what happen to Geraldo, he got creamed cause he screwed up. Think he's gonna tote the liberal line unquestionably? Look at the talent that has migrated from CNN/MSNBC/CNBC to FOX. I dont think there is anything wrong with going down the middle. I think moves like these might more clearly define each of the networks. Look at Paula Zahn, she went from CBS to FOX, realizing she couldn't be objective, she moved to the network that would allow here to be as liberal as she is. You gotta ask yourself, why would Van Susteren jump CNN, do you believe that she can change FOX? Has Geraldo changed FOX? Has the network let up on liberals? Have they changed the types of stories they cover?
FOX has gotten where they are for a reason. Does anyone really think Roger Ailes has gone liberal?