Not playing starters

Not playing starters and Vets in preseason shows in production on field. There is no cohesion or familiarity with team mates. I know you want to play rookies, but it has reared it’s ugly head!
That's probably true for every team. That would likely cause issues for OLs and QBs/WRs that are new to team and each other than at other positions. Teams with mostly all returning starters at those positions have an advantage early in the season.

That could be one of the factors in our pass game struggles, but doesnt explain our OL beginning the season out of sorts.