"Me at CNN was not an easy fit."

"The first month was tumultuous with several tumultuous times throughout. I liked to think of myself as job security for the public relations department. About the only thing the far right and far left could agree on was that I did not belong at CNN."

Erick Erickson, no longer the right-wing guy at CNN. Assuming CNN needs a right-wing guy "for public relations," what kind of right-wing guy should it be... and why did CNN think Erick Erickson was the guy in the first place? I suspect a bias about the right caused the choice, but that he was never really the right choice. Nothing against Erickson, but what makes TV talking-heads shows work?