2023 NFL free agency grades: Bucs get 'C' for adding Baker Mayfield, Bills earn 'A' for keeping Jordan Poyer | CBS Sports Headlines 2023 NFL free agency grades: Bucs get 'C' for adding Baker Mayfield, Bills earn 'A' for keeping Jordan Poyer Grading all of the biggest free agent signings … Continue reading 2023 NFL free agency grades: Bucs get 'C' for adding Baker Mayfield, Bills earn 'A' for keeping Jordan Poyer