The Raiders confirmed the hiring of former 49ers and Stanford assistant coach Jason Tarver to be their defensive coordinator Monday as coach Dennis Allen continues to put his staff together.
Tarver, 37, served as the co-defensive coordinator for the Cardinal in 2011 and before that worked from 2001 through 2010 through five different head coaches with the 49ers.
Under the direction of Tarver and co-coordinator Derek Mason, Stanford’s defense ranked either first or second in the Pac-12 in eight categories, finishing first in rushing (93.3), first in red zone defense (74.0), first in third-down conversion percentage (30.9 percent), first in total defense (331.4) and first in fewest first downs per game (17.8).
Stanford was second in sacks per game (3.2), scoring defense (20.3) and tackles-for-loss per game (7.3).
The Cardinal was fifth nationally in rushing defense, an area where the Raiders have struggled, giving up 5.1 yards per carry in 2011 under Chuck Bresnahan.
Tarver, who attended Foothill High in Pleasanton, was first reported as a candidate Saturday by ESPN, which was confirmed by a source with knowledge of the situation. The Web site Footballscoop.com reported Saturday Tarver had accepted the position.
The Raiders now have all three coordinators in place, with Greg Knapp replacing Al Saunders and Steve Hoffman taking over for John Fassel, but still have a number of assistant coaching positions to fill.
On offense, the Raiders still have not hired assistant coaches for quarterbacks, wide receivers and tight ends. Oakland went without a quarterbacks coach in 2011 with head coach Hue Jackson and offensive coordinator Al Saunders handling the position, but are likely to hire one this season to assist Knapp.
Allen’s background is entirely in defensive football.
On defense, the Raiders have not hired assistants for the defensive line, linebackers and the secondary (Oakland had two coaches for defensive backs last season, Rod Woodson for cornerbacks and Kevin Ross for safeties).
The Raiders could also be in the market for a special teams assistant for new special teams coordinator Steve Hoffman.
Hall of Fame cornerback Willie Brown, a member of the Raiders organization for 41 years, including the last 15 listed on the coaching staff as being in charge of “squad development’’ is currently not on the coaching roster.