Post route no longer works
Here's a list of coverages the Deep Post route are meant to beat:
1. Cover 2 Zone: In this coverage the safeties play closer to the sidelines, and the leaving the player playing the deep middle to Cover the post. Even vs a middling WR this is a tough Cover.
But not in this game...
2. Cover 2 Man. When matched up vs a superior WR even a press corner cannot stop this inside release, inside stem, then solid break to the post. With the corner in trail and good throw will beat the coverage roughly 75% of the time. Since the safety help is towards the sidelines.
But not in this game...
3. Quarters coverage. Let me first start by saying, the way safeties play in-breaking routes in quarters needs to be "flipped" fundamentally. The safety (if not threatened by a vertical from the #2 receiver on their side is responsible for matching any deep in-breaking route from the opposite side (Post/Dig/etc...). While this won't allow the post to break wide open, the matchup should more often than not favor most decent WRs.
But, in this game...it does not.