Bears coach Lovie Smith said Wednesday it's "a little early" to cast predictions on the potential return of Johnny Knox, who continues to rehabilitate from a serious back injury suffered in December. "It would be hard for me to go into that right there," Smith said from the NFL owners meetings in Palm Beach, Fla. "Are you a religious man? Do you talk to God? He can probably tell you. Besides that, it's going to be pretty hard."