'"Obviously, I've always said this is a performance-based business," Bills general manager Doug Whaley told reporters Saturday. "The release of Karlos Williams was strictly performance-based. He came in behind the eight ball and never caught up. And there was other guys on the roster that moved ahead of him. In light of that, we thought, 'Why hold on to him?' Why don't we give him a chance to maybe find another job out there in the league. We weren't going to hold on to him to the end, knowing he wasn't going to make the team."'