The distribution was there but at least a few times the primary target was that (little used) receiver - but as you say he checked down a couple/few times but that's not a progression read, that's a safety valve.. Granted he did go through progressions at least a couple of times, but his lack of ability in this was (very unfortunately) most obvious on the game-deciding INT where it was a telegraph from start to finish. Thankfully the broadcast showed a wide-angle replay and we saw that Pittsburgh played that throw all the way, which resulted in Sample being embarrassingly open on the other side - and, if progressed to would have resulted in a walk-in TD.