I am not talking about completion percentage. I am talking about the placement of the throw. And that has changed. Ben used to be really good at leading WRs away from DBs. He used to be good about hitting guys in stride. He used to be good at putting the ball where only his guy had a chance to make a play. That just did not happen consistently in 2020.
How many times this past season was a guy running left to right and he had to reach back and low for the throw? Or he was going along the sidelines and had to twist and turn for a ball thrown to the wrong shoulder? The 2 point play to Juju against Cleveland is a good example. Juju had the position to "box out" the DB if the ball was head high and to the sidelines. Ben put it chest high and to the field side of Juju's body. The DB was able to get a hand in and break up the pass. Again, this is really picking a QB's game apart and placing really high expectations on performance. But this is the NFL and seemingly little differences like I just outlined are all the difference in the world in outcomes.
Same game. Think of the INT that clanged off Diontae Johnson's hands. I know, he hit him in the hands - totally wrong place to put it on DJ. But he hit a moving WR a few feet over his head. To me, based on what I have been told and read about QB mechanics, that is totally indicative of a QB with flawed mechanics that is sailing balls for some reason or another. I suspect it is because Ben R is putting all arm "shot-puts" instead of moving his feet and upper body in concert and zipping balls in there. His feet rarely moved once he set up in 2020. He never seemed to rotate his hips through the throwing motion. I am not describing it well because I am not a QB mechanics guru, but I know enough to know that you are not intended to throw with everything below your hips stuck in cement.
In this highlight video from 2017-18, his lower half moves fairly fluidly through the entire throwing sequence:
https://youtu.be/ltpT69KhLVk
In this from parts of 2020, his lower half does not consistently flow through the throw:
https://youtu.be/IOOuWAuwnPk and it got worse as the season went on once the games and lack of rest started to pile up.
I'm sure that now that I laid some of this out, someone with more knowledge than me will point out the mistakes in observation and understanding I have made. And that is fine. But this is/was what I think I noticed and I do not know if it caused some of the other things or was just a coincidental occurrence. But Ben R in 2020 did not look like the same QB in 2020 that he was in even 2018.