How important is Field of Vision?

This is all really high quality information. It gets me closer to figuring out the misfires but I think the biggest issue here is that I don't know where to apportion blame:
- Is the QB throwing bad passes? Sure, he makes dumb receiver selections occasionally, but that's the same for all QBs, he's nothing special on that front.

- Is the receiver giving catches away to the covering player?

- Is the defender making a play?

If I'm being beaten by defenders stepping up, that's outside my control. The other two however suggest a need to change/improve personnel. In short, it'd be extremely helpful to know whether it's down to my roster or the opposing players (play selection notwithstanding).

It'll be a combo of everything, too many variables to define where the problem lies. It could also have something to do with which plays your opponent has 'keyed' on.

Also, (I think) game has hidden attributes eg Confidence, Form etc but that's just me speculating. However low confidence, high volatility and poor field of vision could lead to a QB being 'out of sorts' from time to time.

Perhaps for testing purposes there was verbage in the gameveiwer that signified who was at fault. Similar to the verbage for play abuse you see now.....you would see the QB had a" wobbly pass" or the wr "had to adjust to the pass" but it got cleaned up cause it would only select one point of the failure...when maybe several factors contributed....... And the game veiwer was just cluttered and too wordy.

these are some qoutes from jdb over the years

Look Off Def: the ability for the QB to influence the safeties by looking away from his primary receiver. A safety with low zone skill is more likely to abandon his zone in favor of where the QB is looking him off.

Field of Vision: The angle at which a QB can see alternate receivers, i.e. in order to throw to a more wide open receiver the first test is whether that receiver is in the QB's field of vision

I think this is most recent description of kinda how reads work

The QB is now choosing 3 receivers - primary, secondary, and outlet. (Previously he was sorting all 5 and working through them all). The rules to determine them are still based on their route distance and the play call distance. Second, the timing between deciding the first read is covered to the second read has been reduced. Third, he is more likely to use the outlet or throw the ball away if the first two are covered, instead of resetting his read pattern. (He will still sometimes go back to his first read but the probability of that happening has been reduced)

heres an example

The QB will be more likely to throw a deeper route as opposed to an underneath route (if it's a long pass play he will likely try to keep it as such, but it is not impossible for him to choose the shorter route). Again, it's a probability calculation with his experience/intelligence/FOV coming into play

Being in the correct position to intercept the ball, i.e having a chance to intercept the ball at all is how you maximize interceptions

Having a jammed WR at the line makes this easier, as does very fast CBs or double coverage which allows a CB to be in the WR's position to make a play on the ball

The rest as seth said seems to be uncontrollable RNG as to whether the CB tries to knock it down or attempt an interception (a failure of which would knock the ball down anyway)

After experimenting with low pass accuracy QBs (around 40-75) I still don't think those QBs are unplayable since interceptions are decided by the system to be quite rare. Much more common is a low arm strength underthrown ball that gets picked at a much higher percentage than a mildly inaccurate, typically dropped pass.

Pass accuracy increases in importance the better enemy secondary is, as their CBs will be faster, and in position to make the rolls to intercept the ball much more frequently. If your opponent has a mediocre to bad secondary, even a 40 accuracy QB can complete half his passes and chunk enemy teams for huge gains on third and a million.