I'll wait for the experts, but I don't see that the top receiver was open. He had coverage until the DB blitzed right at the snap.
I don't know if Kap could of just thrown to the wide open Smith without an audible to change the play. Otherwise he'd risk colliding with his running back (or getting sacked by the blitzers).
But based on Smith's reaction, I guess an audible or just throwing it may of been an option.


