No one embodies the "age is merely a number" mantra like new Las Vegas Raiders head coach Pete Carroll. He may have silver hair and some wrinkles on his face, but we've seen the same energy, passion and enthusiasm from him for over four decades.
All this time has culminated into a Hall of Fame career; one that continues to unpredecentedly defy Father Time. Carroll even made NFL history on the opening kickoff of his Raiders regular-season debut against the New England Patriots.
One of the league's youngest souls officially became the oldest head coach ever at 73 years and 357 days.