However, the hiring of Jon Gruden as head coach may have changed the outlook. In a Bay Area News Group interview with Gruden, the coach hinted that he would like to have both back.
"I have talked to Marshawn briefly. We'll see. We'll keep everybody posted," Gruden said. "Right now, he's our leading ball carrier. He's our back, and we're counting on him. Hopefully we get an opportunity to work together. That's a man that has a lot of respect in this league as a player and I certainly have respect for him also."
Lynch, 31, came out of retirement to play for the Raiders this past season, but there were questions whether he would return for the second season of his two-year contract.
When asked whether Lynch would be on the Raiders' roster next season, Gruden said, "I don't know."
Lynch rushed for 891 yards in 2017, but 434 of those yards came in his final five games, including 101 in his last game against the Los Angeles Chargers.
Crabtree is a different matter. The Las Vegas Review-Journal reported in December that the Raiders were ready to move on from the 30-year-old wide receiver. But Gruden seems to want Crabtree back.
"I got to bump into Crabtree," Gruden said. "Hopefully we can get the best out of Crabtree and his career. There's some people in place, but we've got a number of issues that are concerning right now and we're focusing on them."
Crabtree is owed $7 million for 2018. He had 58 receptions for 618 yards and eight touchdowns in 2017, a reduction in production after catching 89 passes for 1,003 yards and eight scores in 2016.