Originally Posted by ykc
Also, It is not new scheme to counter the new/current popular offense in NFL, the air attack and read option offense. This defense is in the league for more than 20 years and every offensive coordinate probably knows how to exploit it by now
The 4-3 has been around since Tom Landry created it, and offenses have been exploiting the bad versions of it forever and struggling against the good versions of it.
A new version isn't needed to counter new trends. A good version is.