"Next man up" is the biggest cliche in football, and an idea the Detroit Lions have latched onto this week.
But there is a personal side to the sport, too, one offensive coordinator Ben Johnson and defensive coordinator Aaron Glenn experienced in recent days as the Lions made significant changes to their 1-6 team.
Glenn said he was saddened to see the Lions fire his good friend Aubrey Pleasant as defensive backs coach on Monday, and Johnson said Tuesday's trade of tight end T.J. Hockenson hit "close to home" because of their unique relationship.