The bottom 11 teams did not. Hafley preached getting as many defenders as possible to the football. That way, if one defender missed a tackle, another defender was right there to clean up the mess.

Tennessee Titans defensive end Jeffery Simmons treats Cincinnati Bengals running back Samaje Perine like a tackling dummy on a powerful TFL. Watch the highlights from Super Bowl LIX between the ...

Baylor associate athletic director Sean Padden raced the tackling dummy after practice Friday and scored an easy victory. But he paid the price afterward.