I think Bill's a little worried about his job. Fox got rid of Dick Morris...and Morris was a frequent guest on "the Factor" talking up the "Romney landslide" and Bill wasn't disparaging the idea.
Plus they look at their OLD demographics and know they need a young rightwinger quickly. Along with Bill.....Sean and Greta are getting long in the tooth. Spice up that evening line-up if O'Reilly were to "retire" and some "hot young babe" like S.E. Cupp were to come on and take his spot.
They have Laura Ingraham on as fill-in host....and maybe the ratings go up with Laura????