Coaching, Coaching, Coaching...another example...I forget, maybe the the UT/Miss. game...On Punt coverage, the cover team guys on a obvious fair catch call, one of the cover men "circled around" the returner so as to cover in case of a muff/fumble and so was BEHIND the the returner.
Watching that muffed catch by the Yale returner, what we had was 3 UConn players all in front of the Yale return man and so...muff..., no one BEHIND the returner, and so Yale recovers surrounded by UConn players. That is Coaching...(or lack of it.)