66 QB's started in games last year. 68 in 2022.

I wonder if a lot of that was just teams getting film on him, though, and figuring out how to defend him?

You could be right.  In fact I believe you are right.  Confidence is an integral part of good QB play.  Obviously, a guy needs the physical talent and football IQ to begin with.  But playing with confidence can take that to a higher level.  That's my 2-cents worth anyway :-)

Bagent had a monumental learning curve to climb, going from a small Division-II school to playing as a rookie - as a starter - going against NFL talent.  He sure looks like he has the foundational talent to be a good backup (he won 2 of 4 games).  But he is going to need some time to develop.  When you think about it.  Even if we draft overall #1 in the draft, Caleb Williams, he will need at least a year to settle into NFL starting ball.  And really it will be 2 or 3 years before he is playing closer to his ultimate ceiling.  So for a kid like Bagent it's going to take some time too.  

I felt like the more he worked with Getsy, the less confident he became. I also felt this was true for Fields as well.