The Raiders will make the hires of OC Greg Olson and DC Paul Guenther official tomorrow before the Jon Gruden press conference. Both contracts will be done by then, sources say.
Olson was the quarterbacks coach during Jon Gruden's final season in Tampa. His offenses tend to be pass-heavy and not particularly potent. In 10 seasons as an NFL offensive coordinator, his offensive units finished in the top half of the league in scoring just once (Tampa in 2010). His offenses finished in the top half of the league in total yards three times. Guenther spent the last four seasons as the Bengals' defensive coordinator and has been with the organization since 2005, so he worked with Jay Gruden from 2011 to 2013.