The Oakland Raiders have interviewed Mark Martz for the offensive coordinator job and Juan Castillo for the offensive line opening, according to reports. Martz, the former St. Louis Rams head coach, last coached in the NFL in 2011 with the Chicago Bears as their offensive coordinator. He also has worked as an offensive coordinator with the San Francisco 49ers (2008) and Detroit Lions (2006-07). Castillo is a former assistant with the Philadelphia Eagles. He was fired in October as defensive coordinator. Former Eagles head coach Andy Reid had promoted Castillo to the position before the 2011 season after 13 years as the team's offensive line coach. The Raiders are searching to replace fired offensive coordinator Greg Knapp, offensive line coach Frank Pollack, special-teams coordinator Steve Hoffman and linebackers coach Johnny Holland after finishing 4-12 in 2012.