The creative reboot for ABC's newly announced season seven is coming into closer focus. Following leading lady Jennifer Morrison's decision to exit the drama after the current sixth season, co-star Rebecca Mader announced late Thursday that she, too, would be leaving. "A lot of you have been asking if I will be joining everyone in season seven, so I wanted to let you know personally that unfortunately I am not. This wasn't my choice but a creative decision of the show's that I totally respect and understand," she wrote on Instagram.