The Oakland Raiders are preparing to pursue ESPN analyst Jon Gruden with an offer so strong it could even include an ownership stake in the team, according to league sources.

Gruden will be tempted to accept it, according to sources, but would prefer not to make any decisions until the regular season finishes Sunday and the Raiders make a final determination on their current head coach, Jack Del Rio, who signed a contract extension last summer.

Gruden never wanted to leave the Raiders in 2001 and feels strongly about Derek Carr.

Mark Davis has offered Gruden an ownership stake in the past. An ownership source said owners might not be so quick to approve the deal, because they wouldn't want to establish a precedent. 

Jack Del Rio's agent, Bob LaMonte, also represents Gruden, leading to what one source described as "a lot of sensitive situations."