The repertory comedy "Saturday Night Live" will have 11 cast members this season, down from 16.

Tina Fey has gone on to make the new NBC prime-time comedy "30 Rock," bringing fellow cast member Rachel Dratch with her. Chris Parnell and Horatio Sanz, who both joined "SNL" in 1997, and three-year cast member Finesse Mitchell, will not be returning.

The stripped-down cast was driven, in part, by the need to cut costs, said Lorne Michaels, the show's creator and executive producer.

Given a choice by NBC executives of making fewer shows or having fewer people, he said he chose the latter.

"The show, like a garden that gets overgrown, at a certain point needed to be pruned," he said. "We've done it at six or seven points in the past. You get a bulge in the budget."

The cast of essentially 10 players is "a great size because everyone gets enough playing time," he said.

By adding six cast members in the past two years, "SNL" went through one of its periodic transformations. But it has been able to do it smoothly, without jolting changes that confuse viewers, Michaels said. Returning cast member Darrell Hammond, for instance, has been there for a decade.

"The show has succeeded and prospered to some degree on its ability to reinvent itself," Michaels said, "and this was a time for everything to be reexamined."

One of "SNL's" biggest moments last season was the rap parody "Lazy Sunday," with cast members Andy Samberg and Parnell talking about cupcakes and "The Chronicles of Narnia." The video short became a big hit when distributed online in the days after its appearance.

Other returning cast members include Fred Armisen, Will Forte, Bill Hader, Maya Rudolph, Jason Sudeikis, Kenan Thompson and Kristin Wiig.

Seth Meyers gets the plum job of "Weekend Update" anchor next to Amy Poehler, replacing Fey on the fake-news anchor desk. Like Fey, Meyers will also be one of the show's head writers.

"SNL" opens its season Saturday, with comic Dane Cook as guest host and the Killers as musical act.