Brees would have known before the snap that based on the coverage, if the deepest safety helped out on Olave, the route going across the field would be open. We've seen that play before many times with MT and we've seen Brees hit MT on that play. Having watched Brees run this offense, I believe that Brees throws that to AT 10 out of 10 times. But that is because Brees was able to read the field and knew where every route would be and Carr can't read the whole field.