E needs to time continuation cuts appropriately; see Timing Cuts.
B should make a fast and decisive dump cut; this will mean that their momentum takes them well past D1, making any potential continuation to the break side easier
Note that B’s cut is not directly across the field. Rather it is diagonal to take them downfield. This makes it far easier to get continuation out.
When cutting for power position, B’s momentum takes them in front of D1, opening up angles to throw continuation.
The receiver should react to the thrower’s signals. One good method is to allow the thrower to make a clear, deliberate fake if they don’t want to throw any pass; this will signal to the receiver to turn and give a different option