The best NFL defenses usually have the best players, however, there are schematic differences that can boost teams into the top. This article takes a look at the best defenses in the NFL counting down from 15, the first in a three part series.
15. San Francisco 49ers
San Francisco was a top 10 defense last season, boasting a fierce pass rush from all angles, a secondary with great zone coverage, and the best coverage linebacker in football in Fred Warner.
Their new defensive coordinator DeMeco Ryans is taking over for Robert Saleh, but as a player Ryans was known for his leadership and cerebral football mind, this unit shouldn’t see much of a drop off and still continue to be one of the best in the NFL.