Assistant offensive line coach Steve Wisniewski resigined his position due to personal reasons, the Raiders announced Thursday.
Wisniewski was retained on coach Dennis Allen’s staff to work with line coach Frank Pollack as the team shifted its philosophy to a strictly zone blocking team.
The club’s release said Wisniewski would continue to assist the Raiders as an “ambassador.’’
The team will not fill Wisniewski’s position on the coaching staff.
Wisniewski joined the Raiders staff last season after previously working as a strength and conditioning assistant on the Stanford staff of Jim Harbaugh. His nephew, Stefen Wisniewski, is slated to be the Raiders’ starting center this season.