"He’s a coaching relic routinely paralyzed by fear late in games. He never imagines what could go right with 20 seconds left in regulation, instead forever horrified of what could go wrong. Oblivious to the reality that he employs one of the sport’s most talented quarterbacks. The word you’ll hear constantly from those who’ve been around McDermott is “tight.” He’s so incomprehensibly tight, they say, players cannot help but stiffen up themselves. As if the head coach uses the 2-minute warning to administer mass lobotomies on his team."
This, to me a simple fan, resonates with what I see in games and my gut instinct.
"One assistant coach remembers McDermott saying in the locker room that the offense scored too fast and left the Chiefs too much time."
Also, a head coach telling his team they lost because the offense scored too fast is a head coach who doesn't take accountability. If 25 insiders (even if "cherry picked" because they share a bias), have a similar view, that's a lot of smoke. I believe there's a fire.