Originally Posted by Irish Stout
Wanted to expand on short openings in coverage for wideouts vs RBs for you, so drew this up quick:
The underneath stuff is open for wideouts because the corners are in their backpedal and have to keep the play in front of them and the outside linebackers physically aren't there yet.
The underneath stuff is not nearly as open running backs. As they flood to the flat, the outside linebacker is doing the same thing.