Garrett's version of the offense is very similar to Cam Cameron's. Outdated and stale. All passes are to the sidelines, ignoring the middle of the field. This offensive system got Cam fired mid year in Baltimore. They saw how stale his offense was. Norv runs similar system, and he had a horrible year and is unemployed.
This timing system requires good pass protection so the quarterback can get the ball out on time. A good running game is also necessary.
We don't have a good OL, which damns the running game and the passing game. Garrett, no matter what continues to run the same offense no matter what, he makes no adjustments. Defensive Coordinators know how to play this offense, and have little trouble with stopping it. This offense needs to go the way of the Flex and 46 defenses.
This past season, there were only four teams running this style of offense, the Cowboys, Chargers, Ravens and Lions. The Ravens fired Cam, ours was doomed by the OL, and so was Norv's and the Lions played well, but didn't have many wins to show for it.
A change in philosophy is needed here, but Garret is too stubborn and egotistical to allow that change.