Board Thread:WARNING ALL USERS False Info\Spoilers/@comment-16047999-20140131200629/@comment-19765459-20140131232009

This is why Cora's scenes in the earlier part of 3a could have been done exactly the same with Erica. They were written for Erica, and Cora was a last minute replacement. Gage's departure (which didn't pan out in the end as I understand it) threw the writers a curveball too close to filming. That they hired an actress who had another show lined up (with a starring role) meant that it was dead from there.

Boyd was always a rather flat character. He was written as willfully antisocial, even when people were nice to him he was even more standoffish than Derek, and that's saying something. So he would have been difficult to fit into the group dynamic without a lot of character development, and they probably didn't want to spend screentime on that for a secondary character (God knows they never have for fan favorite Danny).