Jenna FischerSteve Carell's departure from NBC's 'The Office' has Hollywood wondering how he'll leave Dunder Mifflin -- and who will replace him. His co-star Jenna Fischer dished to Us Weekly about TV's buzziest cast switch-up.

"I can tell you that it's not as simple as Steve leaving and a new person coming in," Fischer said about the fictional Michael Scott's replacement, while on the red carpet at the Screen Actors Guild Awards.

She also hinted that longtime fans of the show will see some familiar faces in upcoming episodes.

"There's going to be a lot of restructuring," she said. "You're going to see people from the past and some new people."