Mavric
Yoda
I'm sure there are some things going on that we don't notice. But I'm talking about big-picture scheme. Our DBs - and especially our safeties - would be doing something completely different in coverage if we were running any type of zone look. When all of our DBs (save one safety, usually)- and often our LBs - are locking on to one receiver and following them wherever they go on a pass route, we are obviously running a man-to-man scheme.
If the safeties were running a zone look, they would only cover whatever player came into their area. When a player left their area, they'd pass them off to the next defender. Corners may have similar coverage responsibilities on both man and zone looks because their "zone" would often include the outside receiver running deep. But it is most obvious with our Nickel and Dime defenders. They rarely have Safety help over the top. They have to cover man-to-man wherever they go. If you have any sort of zone scheme, your "inside" DBs would have help over the top so they can be more aggressive on the shorter routes.
Thus, it's pretty easy to tell what coverage we are running most of the time. I honestly haven't seen any coverage in any game that looked like overall zone coverage (except for the Hail Mary). We usually have one Safety playing zone - and some LBs depending on what their guy does - but the rest of our DB are all locked up man-to-man. This is not hard to tell from watching the replays.
If the safeties were running a zone look, they would only cover whatever player came into their area. When a player left their area, they'd pass them off to the next defender. Corners may have similar coverage responsibilities on both man and zone looks because their "zone" would often include the outside receiver running deep. But it is most obvious with our Nickel and Dime defenders. They rarely have Safety help over the top. They have to cover man-to-man wherever they go. If you have any sort of zone scheme, your "inside" DBs would have help over the top so they can be more aggressive on the shorter routes.
Thus, it's pretty easy to tell what coverage we are running most of the time. I honestly haven't seen any coverage in any game that looked like overall zone coverage (except for the Hail Mary). We usually have one Safety playing zone - and some LBs depending on what their guy does - but the rest of our DB are all locked up man-to-man. This is not hard to tell from watching the replays.