Perhaps the biggest of the 3rd down conversions given up by the 49er defense. 8 point game in the 4th.
The 49ers will pattern match from Cover2 Zone vs Daggers
Besides the Daggers concept, there's the dreaded Deep Cross from the #3 WR out of trips formation. Remember back to CAR, the 49ers had trouble with this route and left it open several times (this was covered in the CAR film thread, now merged in this thread).
The field Cover2 safety seems to favor the middle of the field more than a Cover2 safety should. So I'm not positive about Cover2.
The 49ers adjusted to the Deep Cross form #3 by using the weakside Hook defender to match it. That's what happens here as RayRay matches #3. Bow will match the drag route. If this is a Cover2 pattern match coverage, there are two safeties deep, 4 man rush, each of the remaining 5 need to man cover.
This is either a busted coverage in terms of a player missing an assignment, or a perfect route combination that breaks this coverage. RR needs to match someone if everyone is pattern matching with 2 deep shell.
Another way is how Fangio did it. Allow the first vertical that a LB sees coming to him to be passed off to safety. Then remain in zone to see if another threat comes.