CBS shakes up Kate Couric's Evening News. Who got fired?

Since Katie Couric has taken over at "the CBS Evening News", the ratings have failed to compare to NBC and ABC who are battling it out of over the top spot.

Now CBS execs are cleaning house, starting with the show's executive producer.  CBS has ousted Rome Hartman, who had been producer of the show since November 2005, starting under Couric's predecessor, Bob Schieffer.

Hartman will be replaced with Rick Kaplan, a multiple award-winning news producer and executive whose career in broadcast journalism spans more than 35 years with credits running MSNBC and CNN.

Couric joined the CBS Evening News at the personal invitation of CBS Chief Executive Officer Les Moonves leaving NBC's "Today" show where she had been the co-host for 15 years.  She attracted 7.5 million viewers last week, trailing NBC's 9.6 million and ABC's 9.4 million, according to Nielsen Media.