Beast Mode Return?

According to Peter King at MMQB (Monday Morning Quarterback) Lynch "Really wants to play for the Raiders". The Raiders who have expressed interest in the retired running back after Latavius Murray, who recently signed a deal with the Vikings. Lynch has been retired for just a season, and would have to come out, which includes a process along with it. Currently the Seattle Seahawks have Lynch's rights, therefore Lynch would have to ask them to release him. I question if this would be the right move for the Raiders, as their need for a running back is high. Lynch had serious problems before retirement not only in the locker room, but he spent the halftime of games trying to relieve his back pain. Lynch would have to be a rotational back as his age and his body are not 100%, he would have to be a goal line go-to player. Lynch would not be a every down Halfback, his style of running has taken a tole on the 30-year old Lynch. The Raiders would have to bring in another back, preferably someone young, who has a Beast Mode style of running, or they can attempt the backup last year, Jalen Richard, who on just under 100 carries, finished with over 400 yards, averaging 5.9 YPC (Yards Per Carry). This Lynch move would be a good idea if the price is right, and if they limit the carries and are smart with the situations in which they put the highly touted Halfback.