When the New York Giants hired James Bettcher to be their defensive coordinator in January of 2018, it surprised some. The football man runs a 3-4 defense and the Giants have played a 4-3 defense for the better part of the last two decades.
When making a drastic change in defensive philosophy, such as moving from a 4-3 to a 3-4 defense, it generally takes at least two years to acquire the proper personnel. So, in hiring Bettcher to run the defense, Pat Shurmur, Dave Gettleman and ownership showed a ton of faith that Bettcher can make the Giants defense dominant again once he gets his type of players.