As Amphar has pointed out, the quickest way for Burrow and the offense to improve is just to take what the defenses are giving them. If they’re selling out to stop the pass, run the ball from the shotgun (they did this last week with some success), check it down, dump it off, etc. Pick up a couple firsts that way, the D will have to come up and then you’ve got a shot.
I know, everyone hates dink n dunk, me included. And everyone from Bob “bombs away” Bratkowski to Marvin “chunk plays” Lewis to Joe “Chase is down there somewhere” Burrow loves them the Big Play. But you need patience. Do the other stuff, it’ll come.