Kirstie Alley has had her fill of Jenny Craig

You can only be a weight-loss spokesperson for so long—at some point, you’ve lost the weight, and keeping it off becomes the best-case scenario. Thus it is for Kirstie Alley, who has officially left her job as a big loser for Jenny Craig, according to People magazine. Kirstie had a nice run, but the writing was on the wall ever since J.C. signed the much cooler Valerie Bertinelli. The company’s vp of marketing, Scott Parker, tells People: “Now that Kirstie has ‘passed her maintenance baton’ to Valerie, you’ll see a new campaign with a new celebrity client emerge, in 2008 … one that promotes health with Queen Latifah.”