I'm guessing a large part of this is on Fields himself. He ran to save his life last year. He's trying to be a pocket passer to preserve his body of the hits he will take as a runner.
But it's kind of funny. Last year it was Fields ran too much and that wasn't sustainable. Fans complained about the lack of pass attempts, saying they should "just let him throw it". There was also a lot made that he needs to stop holding onto the ball and look for the checkdowns after his first reads are not open.
Well, he's not running as much and everyone's like, "why isn't he running?" He's had more pass attempts each game than he had in any game last year, "well, Herbert avg 6 ypc, Roschon 8 ypc, why aren't they running the ball more?" Week 1, he checked down almost exclusively, "well why isn't he throwing it down the field?". Week 2, he kept looking to go down the field, "why is he holding onto the ball so long?"
Obviously, the answer is a healthy balance of all of this. Sometimes they need to run the ball more with RBs. Sometimes Fields needs to go deep (like typically when guys are open and you're staring at them, Justin). Sometimes Fields needs to check down. Sometimes he needs to take off running.
And I know we all want that healthy balance right now and for downfield, checkdown, run, handoff to all be done with 100% perfection and efficiency.....but it's 2 games in. Two games of the team around him actually trying to put a winning product on the field. I think some expectations have been unfair (part of it is the crap from the building saying how much he has improved w/ the playbook). Fields is still throwing to mostly new WRs (DJ, 100 snaps in 22 w/ Claypool, Scott), he has a whole new OL from C to RT. We still see guys flashing in the backfield immediately. We still see receivers running the same route in the same place. We still see them behind the chains due to (almost exclusively Braxton Jones') penalties.
This is not to absolve Fields of blame. He's still terrible out there. He shouldn't have to overcome everything being thrown at him, but he has to be able to overcome the basics. See guy open, throw to open guy. See no guy open in 3 seconds, you are now a runner. QB is a tough position, but make the layups. I do think he has shown enough ability to do all these different things, but all at different times. He just has to put it all together, all of the time.