All teams go through tough times when things aren't working. The Pats had it with Brady when they'd start the season with a couple of losses and people would say that's it for them. The Chiefs were blanked in one game last year and everyone said Mahomes was figured out.
NFL defensive coordinators are good at what they do and will eventually scheme to stop certain things. the key is how well your coaches can go away and make changes that negate what other teams are doing. We'll see what McD and Dorsey can do.
And yes, as others have said, Josh needs to play smarter and not turn the ball over as much