...the back-up quarterback.
This is Charlie's joke and it carries some weight. There are many reasons a team loses and it is the Head Coach's job to study the tape after the game to see what went wrong on each play that did not work for us, and in each play that worked for our opponent.
Only once he and the rest of the coaching staff have reviewed all these plays do they make up their minds as to what the problems were and how to fix them.
Us fans are mislead by play-by-play commentators who, like us, are watching in real time. All we can see is that the play did not work. It is hard for us to see the reason the play did not work.
It might appear to us that the opposing QB and receiver were brilliant, when in fact the cause of the big play was some Ticat defensive back away from the play missed an assignment causing our safety to be drawn out of position allowing the opposing receiver to become open.
Or it might appear to us that our running back cannot find a hole to run through. When it was our offensive lineman who blocked the wrong guy leaving the guy he was supposed to block free to plug the hole our running back was supposed to run through.
Or our QB throws an interception straight to the opposing defensive back. When the problem actually was that our receiver cut left when he was supposed to cut right and our QB threw the ball where our receiver was supposed to be.
These are the mental mistakes and errors that the coaches catch on film that the rest of us, and even the TV "experts" cannot see during the game. Which is why I have faith in Charlie's decisions over the opinions of even the best informed of our fans.
Hope this helps.