OK! magazine's executive editor Juliet Heller was just shown the door by editor Sarah Ivens. (Keen masthead observers will notice her name is missing from this week's issue.)

We're told Ivens & Co. are eying "the usual suspects" at Us Weekly and People to replace her. Says one insider of Heller: "She's totally nice" but "she didn't bring much, if any, news to the magazine and just was an ill fitting position for her from the get-go. She's not a celeb weekly type of person." To be sure, Heller did arrive at OK! in '05, at the same time as co-exec ed Lori Berger, from Star.