Well let me put it this way dude -- Brissett came in as an NFL rookie, with a preseason and a few weeks of practices under his belt, not nearly ready for live action and clearly way raw and underexperienced -- and still showed us good poise, courage, and intelligence. To come in ther in the second game of your NFL life, green as goose **** and probably nervous as hell? He was doing well to not be a deer in the headlights. And to keep your head, run the plays you're given and lead the offense like a pro for 2.5 games? That was lovely. Just lovely. Reports of Brissett's leadership in the locker room were also very favorable.
So he had the heart for the job, had the poise for a job, did not shrink from a responsibility he probably wasn't fully ready for, and made some good plays with his feet and arm. That's a sign I'll pay attention to at this stage in his development and ignore the gameday stats. The stats just show something we know -- one and a half live games into his NFL career the kid was raw. He hung up some W's though, and I can respect that.
They ran a high school offense because Brissett was too green in the system to master or execute Brady's system in such limited time, the receivers aren't used to him, the linesmen aren't used to him, and the team is built around an elite passing quarterback which Brissett is not, which tore a lot of pages out of the playbook, Bill was restricted to high percentage plays so that's what he used. But Brissett executed the plays Belichick called very well, he didn't surrender possession of the football, he made good decisions with the ball, he ate the clock, scored his points and turned the game over to the defense. Exactly the gameplan Belichick asked of him.
The playbook and mechanics are things that can be worked on. You can't teach heart, and while Garoppolo doesn't lack it, Brissett clearly showed that he has the heart of a champion (now just work on your arm, kid).
If the team has 2-3 years to drill Brissett into shape before Brady's gone, he'll be ready, and I think when he is, the team will have something special.