so many coaches can design great systems, coach up their players, call a great game, then totally fall apart when it comes to situational awareness.
That's the biggest advantage NE has had for years now. They almost never lose, and when they do it's either to ex Ne assistants (TEN and DET last year) or other long-tenured coaches who tend to be somewhat better than average at this stuff.
Andy Reid is the most famous example of this, literally pissing away 1-2 wins a year with terrible clock and situation management. McDermott has been ok, but that end of game sequence was horrible.