The Baltimore Colts lose their quarterback, not only their starting quarterback, but their only quarterback and the quy who has been 100% of their offense for years. They lose him for the entire season, win two games and fire their head coach.
The Oakland Raiders lose their starting quarterback early in the year, then they lose their second string quarterback. They have to go out and sign up a quarterback who had retired earlier in the year. They also lose a running back who is potentially All-Pro. They win eight games for a .500 season and fire their head coach.
The San Diego Chargers have their All-Pro quarterback healthy all year. They have their first round draft pick running back healthy all year. They win eight games, only one of which is against a team with a winning record, for a .500 record on the season, and do not fire their head coach.
There is undoubtedly a planet on which that makes sense. It isn’t Earth.