Since the NFL introduced the salary cap in 1994, team owners haven't been shy about changing head coaches. There's been an average of seven changes per year, and that number has held up for more than two decades. There have been 43 changes since 2011

Since the NFL introduced the salary cap in 1994, team owners haven't been shy about changing head coaches. There's been an average of seven changes per year, and that number has held up for more than two decades. There have been 43 changes since 2011