re: Concerning our receivers getting separation...

It must have been instinctive for Josh Reed. He was a running back but could always get open and make the first man miss then drag the next one five yards before went down.
It can be learned. Our guys have little experience of actual game time, except No 7. How many game opportunities have they had in their careers. Jefferson seems to be the most efficient because he and Burrow spent a lot of off season time practicing.