He then shared the best advice about calling it quits. "Hey, you coach, until you just can't take it anymore." Harbaugh recalled the words of his father, Jack, who coached over a span of five decades.

John Harbaugh ... you've got the best owner in the National Football League. 5-for-5.' "That's the blessing. That's why we're at where we're at right now. I'm very grateful." While some coaches ...