The cast of the "Real Housewives of Beverly Hills" may be experiencing more changes than we originally thought.

Although rumors of Carlton Gebbia leaving still circulate, there is word that Kim Richards and Yolanda Foster may also be fired from the show.

Lalate.com has reported that despite Yolanda Foster's claims that she's the most genuine housewife on the show, she has hidden plans of her own.

Husband David Foster revealed that the RHOBH cast member wants to have "a lifestyle and fitness show." He stated, "She's very good at it and she's very good at giving advice."

David then stated that his wife thinks that the RHOBH cast is "just a bunch of clowns trying to make a living."

Lisa Vanderpump, who has clearly been going through a rough patch in terms of her friendship with the former model, responded by saying, "A bunch of clowns? Well, I must be the hardest working clown in the business. That's really bloody funny ... She's only just joined our show. One step at a time. She's joined a successful show. I'd be thankful for that."

Vanderpump didn't stop there. She added, "Joyce had warned me at the beginning of this season that Yolanda and Brandi were less than loyal and I had foolishly ignored it. Hindsight is 20/20."

Lisa has apparently had enough of Yolanda's snide remarks on and off RHOBH. She stated, "It has been difficult witnessing her constant snipes, but I have to disregard it as my love for Mohamed and her children superseded anything she could possibly say."

Could Yolanda's change in behavior be caused by the rocky marriage rumors that have been surfacing?

Examiner.com revealed that the Fosters recently put their Malibu mansion on the market.

A source close to the couple told Star Magazine that "things are not good" and that blonde beauty rarely mentions David now.

The music producer's rep confirmed that the reports of their rocky marriage are "totally not true."