Same day reports Raiders last two former Offensive Coordinators not returning to their 2018 teams

Jul 27, 2017; Englewood, CO, USA; Denver Broncos quarterbacks coach Bill Musgrave looks on during training camp at the UCHealth Training Center. Mandatory Credit: Ron Chenoy-USA TODAY SportsThe Raiders have had three offensive coordinators the past six years. And as of right now, the only one who is sure to be employed by an NFL team in 2019 is Greg Olson — their once and current OC.

Olson was the team’s OC in 2013 and 2014 before being replaced by Bill Musgrave when Jack Del Rio was hired as the new head coach. Musgrave was let go after two seasons in favor of his QB coach, Todd Downing. And Downing was out along with the rest of Del Rio’s staff a seasons later when Gruden came in, bringing…