He mentioned three QB's who also played on the best teams in the league.
In 2016 Drew Brees led the NFL in passing, the Saints had the 2nd best offense and 32nd ranked defense in the NFL... they went 7-9.
You need "good" QB play, but don't necessarily need the best QB.
It's a TEAM thing.
Again this is a bad example. The Giants in 2011 were 9-7. They upset a 15-1 Packers team and a 13-3 Pats team to win their title. They were not remotely considered the best team. Eli was the standout in the playoffs. The Ravens in 2012 were 10-6 and had to go on the road and upset the Broncos and Patriots who were both favored. They were not the best team. Their defense was also older. They won because their QB had the best year of his life.
Nick Foles did inherit arguably the best team that year. He also put up monster playoff numbers and won a shootout in the SB when his defense didn’t do anything to stop Brady. If he was any less than perfect, they don’t have a Super Bowl.
Now to Brees. If you run analytics, you would realize that the period of time you were referring to, the Saints had one of all time worst defenses in NFL history. That’s not hyperbole. Some of the worst teams in the league dropped 40 on them. They were godawful on defense. Brees being their gave them a floor of 7-9 because he could go score for score. That’s the value of a QB. You made a mid range record with an all time bad defense because the QB can still compensate. Once the defense got marginally better they shot right back up to playoff contention. So yeah the QB mattered a lot. That was lucky to be a 2-14 without Brees.
In 3 of those cases the QB is the primary reason those teams won titles and they wouldn’t have won without excellent play. In the other the QB was the reason an all time bad defense didn’t complete bottom out the team.
You either need an elite QB, elite QB play or a once or twice a decade dominant defense. The elite QB will give you chances most of the time, the QB who can occasionally play elite will give you chances 1-4 times, and the historically dominant defense will give you 1 chance when all the cards line up.
The model is to find an elite QB. Tom Brady, Peyton Manning, Aaron Rodgers, Drew Brees, Russell Wilson, Ben Roethlisberger, Mahomes account for 13 of the 19 titles since Brady’s first (I’ll take off Manning’s 2015). Eli/Flacco/Foles who were playing elite account for 3 more. So you are at 16 of 19 or 84%.
The remaining are Brad Johnson winning with an elite Tampa 2 defense, Manning winning with an elite 2015 Broncos defenses.
Then you have the 2007 Giants which was a super weird outlier of strong but not out of this world defensive play and clutch moments by Eli.
Even if you don’t want to give Wilson credit for 2013 (I think that’s a mistake, he was always a strong QB who got overshadowed) it changes those numbers by a fraction.
QB is far and away the most predicative and important position. It’s not close. That should always be the priority. As far as I’m concerned the minute Bill let Brady walk without having a solid option, he basically punted on this season. And by the way he has been talking lately, it kinda feels like he’s not unaware because he clearly is taking it easier on the team