Readers might however find interesting the extended discussion of the concept I previously wrote up here. It is known as the "angle" or "follow" concept. In other words, although the Broncos throw it for the touchdown and conversion to the same guy, the quarterback's secondary reads are to the corner route and the receiver who begins like he's running to the flat but then pivots and comes back inside. The Broncos also use a corner route to the other side as well, unlike the post route I have drawn up in the diagram, above.