[JRutledge]

I would have to see the play in question again, but based on what I remember the deep wings (SJ, FJ) and Back Judge were all at the end line at the start of the play. The only ones that would have been behind the play are the short wings (Linesman or Line Judge). As a general rule the outside receiver is the key of the deep wing to that side of the field. Potentially 3 officials could see some part of the play if they have gotten off their key and zone up to cover their angle. The deep wing or back judge would see the entire play if the receiver was their key and then the other official would see it once it was clear the pass was being made to that area. Any one of these 3 officials could have called this foul if they saw it that way, but usually at least one official is with the entire play the entire time if they are doing their job and likely passed because they saw the actions of the receiver and saw both players grasping and holding each other.

Peace