The homefield advantage has been lost.
The defensive tenacity has vanished.
The offensive potency has been absent.
And when Dallas Cowboys owner Jerry Jones turned 82 years old on Sunday, his birthday became just another milestone marking 27 straight seasons of football calendars turned and burned. Both in the near term — an embarrassing 47-9 home defeat to the Detroit Lions — and in the long term, via a reminder that Jones’ Cowboys haven’t won anything of Super Bowl consequence since he was in his early 50s and the only pads Dak Prescott was wearing were diapers.