I'm hearing that ABC is wooing Sally Field to take over the role of Calista Flockhart's mom on Brothers & Sisters, the new drama that's inheriting Grey's Anatomy's Sunday-night time slot this fall. Betty Buckley, who played the role in the show's original pilot, has been let go for creative reasons. Hmm... that probably explains why Brothers & Sisters was the only pilot ABC didn't send out to critics.

To get your last look at Buckley in the part, check out this trailer posted on ABC.com.