This is probably the best explanation. A lot of other good points were made as well.
It's most likely that his first year he was asked to only read half of the field. Limiting his reads. Now he's reading the whole field and has "paralysis from analysis". To counter that, he decides to lock in on a WR, hence missing wide open guys.
Coaching, good coaching can help with that, but a lot of that is simply ability. Reading defenses, anticipation, accuracy.
I was a Dak fan. But this his third year and he has regressed now each year.
I also thought Linehan would be more creative. Still not sure if this is really his offense or if Garrett still has his mark on it. Either way, it's atrocious.
Dak will be our QB next year. He's cheap and we have no other options.
This year is done. So I'd pull the trigger and dump Garrett and Linehan. Give Richard's the interim job and see how he does. Not sure who would call plays, but it couldn't be worse than what we have now.
Next year, depending on how Richard's pans out, make him HC and let him find a bright, creative OC and see what he can do with Dak.
If Dak doesn't show any improvement, then do whatever it takes to get a QB in the 2020 draft.