San Francisco 49ers are set to make a major change to a 4-3 defense after their decision to install former defensive-line coach Jim Tomsula as their new head coach.
The 49ers have had one of the NFL's best defenses for the past four seasons, and even during what was a torrid 2014 NFL season, the Niners managed to remain stout enough to go down as the NFL's fifth best total ranked defense in the regular season.
However, an offseason of huge changes has already started for the 49ers before the season has even officially ended. Jim Harbaugh's departure saw an interview process that had many top candidates linked, but in the end, Tomsula was always the man top management in San Francisco wanted.
49ers set for huge defensive change
The move to install Tomsula as the head coach will bring with it a fair few extra changes, according to reports. Some reports suggest that current defense coordinator Vic Fangio will not want to work for someone who was working for him last season.
But arguably the biggest change that the promotion of Tomsula could bring is the high possibility of the 49ers changing their defense to a 4-3 base D from a 3-4.
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Reports from Niners Nation explain that the 49ers are looking to revamp their defense. The move is somewhat controversial when you consider the fact that the 49ers' 3-4 defense has been so successful in the last four seasons.
"The San Francisco 49ers are revamping most of their coaching staff following the hiring of Jim Tomsula, and those changes are going to result in some significant adjustments on both sides of the ball," Niners Nation reported.
"On the defensive side of the ball, it sounds like there will be a pretty big change. I spoke with Matt Miller, Bleacher Report writer and briefly a writer here back in the day, and he has heard the 49ers expect to make a switch to a 4-3 defense in 2015."
Tomsula is not the argumentative type
San Francisco parted ways with former head coach Jim Harbaugh a couple of weeks ago by so called mutual consent.
It's no secret that 49ers' CEO Jed York was not a fan of Harbaugh's brass approach to coaching. Although Harbaugh turned the franchise around and made three AFC Championship Games and one Super Bowl, Harbaugh's ability to upset management was key to his downfall.
However, Tomsula is the perfect company guy and York has already commented on his class and integrity. It's clear that York has gone for a man that will be easy to get along with and someone that won't dispute major issues. But it remains to be seen if he gets as many wins as Harbaugh did.