‘But Jackson is in a weird spot. He just finished his second NFL season, and that makes him an exclusive-rights player. He’s not really a free agent. He can re-sign only with the Bills, and all they must do to retain him is tender a one-year contract for $460,000. "I’m 28. I can’t do this forever," Jackson said from his home in Hamburg, N.Y. "I have a wife and two kids I’ve got to take care of them for the rest of my life. I know I can’t play football for the rest of my life."’