i'm not going to say it's all on joe brady, but...
predictable playcalling woulld increase the odds of interceptions and "ambulance" passes.
predictable playcalling would make an oline less effective.
predictable play calling would make it impossible to score in the red zone.
again...not saying it's all in joe brady, but...he's a major factor as to why the panthers offense is absolutely unbearable to watch.