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Every 49ers Defensive Coordinator since George Seifert

When Bill Walsh was promoted to the front office in 1989, longtime defensive coordinator George Seifert was chosen to fill his head coaching role.

Twenty-seven years later, the San Francisco 49ers this week hired former Cleveland Browns defensive coordinator Jim O'Neil to the same position.

Here is the complete timeline for how the 49ers over the years transitioned from Seifert all the way to O'Neil.


DC: Bill McPherson

Rank in points: 3rd, 2nd, 4th, 3rd, 16th

Rank in yards: 4th, 3rd, 6th, 15th, 15th

W-L: 62-18


DC: Ray Rhodes

Rank in points: 6th

Rank in yards: 8th

W-L: 13-3


DC: Pete Carroll

Rank in points: 2nd, 4th

Rank in yards: 1st, 7th

W-L: 23-9


DC: John Marshall


Mike Holmgren, Mike Shanahan, Jeff Fisher, Pete Carroll and others all once graced the San Francisco sideline.

Rank in points:** 3rd, 13th

Rank in yards: 1st, 23rd

W-L: 25-7


DC: Jim Mora

Rank in points: 30th, 28th, 9th, 18th, 21st

Rank in yards: 28th, 29th, 13th, 14th, 13th

W-L: 39-41


DC: Willy Robinson

Rank in points: 32nd

Rank in yards: 24th

W-L: 2-14


DC: Bill Davis

Rank in points: 30th, 32nd

Rank in yards: 32nd, 26th

W-L: 11-21


DC: Greg Manusky


Rank in points:** 20th, 23rd, 4th, 16th

Rank in yards: 25th, 13th, 15th, 13th

W-L: 26-38


DC: Vic Fangio

Rank in points: 2nd, 2nd, 3rd, 10th

Rank in yards: 4th, 3rd, 5th, 5th

W-L: 44-19-1


DC: Eric Mangini

Rank in points: 18th

Rank in yards: 29th

W-L: 5-11


DC: Jim O'Neil

Rank in points: TBD

Rank in yards: TBD


Stats from Additional research provided by former digital editor Andrew Pentis.

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