question for all you defensive gurus

I believe it was jabari Greer's INT which made me think of this. IIRC, there was a blitz coming on that play and Sanchez went with the "hot read", the result of which was the greer pick. So my question to all you defensive gurus, was this an INT by design? What I mean, since the QB, especially a rook, will quickly hit the hot receiver when he sees the oncoming blitz. Was greer in position by design in anticipation of the QB reaction to the blitz? Of course this would mean someone else was likely more open (unless a safety/LB picked up where greer was "supposed to be". What say you all, was this a "forced INT"?

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