It's not really that simple. Coverage schemes these days incorporate a little of everything.
If you want two teams that play a primarily zone scheme look at Seattle and Carolina. (No team runs any coverage 100% of the time.) They use a lot of Cover 3 which is what we primarily used in 2014 before switching to a primarily Cover 1 in 2015.
Wade in Denver and the Cardinals like man coverage in cover 1, but Wade will mix it up a lot. He'll throw out cover 2, cover 4, etc.
What coordinators do now is basically split the field in half, and mix coverage based on matchups. It's not uncommon to see a different coverage on the right side than the left side for example.
Yes, I know teams mix up schemes. And cover one doesn't mean man across the board, it means man deep. But the backers can still run zone concepts.
Here is a good article on what the Seahawks do. And why losing a couple of their corners has hurt.
http://www.nfl.com/news/story/0ap30...ahawks-defense-must-adjust-to-vulnerabilities
While most observers attributed the
Seahawks' success to the stellar play of
Richard Sherman,
Earl Thomas and Chancellor, I believe the unheralded contributions of
Brandon Browner,
Byron Maxwelland
Walter Thurmond played a major role in the unit's dominance over the past few seasons. The trio capably manned the right cornerback and nickel back positions, respectively, which allowed Carroll to confidently employ a variety of man-to-man tactics on the perimeter. Most importantly, their spectacular play on the perimeter allowed the
Seahawks to play it straight in the back end without forcing their top corner (Sherman) to "travel" to match up with the opponent's WR1.