This is a good sign for Jacobs who should see the biggest workload. HC John Gruden has been on record as saying he expects Jacobs to be the NFL Rookie of the Year, so he's expected to put up fantasy numbers as a result. The story expects Richard and Washington to stick around behind Jacobs.
OAK RB DeAndre Washington - 2018 Fantasy Football Outlook
DeAndre Washington has an above-average offensive line and a head coach who is expected to lean on the running game more in 2018.
DeAndre Washington appears to be behind both Marshawn Lynch and Doug Martin on the depth chart.
2018 Bottom Line
Washington simply is not fantasy relevant unless Doug Martin and Marshawn Lynch are no longer in the picture, and even then, he'd likely split touches with Jalen Richard. A path to fantasy-relevant touches just doesn't seem plausible.