While I will agree with the content, the two have zero on air television presence. They don't come to life in front of the camera. Granted it is probably hard to come to life sitting like two statues, but that is the point. It is hum drum.
Have the talent sit next to one another, pull away from the close ups, have some sound effects. If you want to be on television, where there is competition at that hour, now you have to be a radio show, not two people talking into a microphone.
Nancy can bring it if she wants, Kevin has a lazy reputation so I am not sure how willing he will be to do what it takes to make this work.
Better idea would be to record Corbett's show the day before, edit it and put it on the air. Steve has a presence Nancy and Kevin do not.