Cable had served as the Seahawks' offensive line coach and assistant head coach since 2011. Before that, he compiled a 17-27 record in three years as the Raiders' head coach. The team finished third in the AFC West in each of those three seasons.
In addition to the team's middling performances, off-field controversy marred Cable's time in Oakland. In August 2009, Cable denied allegations he punched defensive assistant Randy Hanson. A few months later, two women told ESPN's Outside the Lines that Cable struck them while they were in a relationship with him.
After leaving Oakland, Cable moved on to Seattle, where he hasn't enjoyed a ton of success—at least in terms of his individual job duties. Here's where the Seahawks have ranked in adjusted sack rate in his seven seasons with the team, per Football Outsiders: 24th, 20th, 32nd, 24th, 30th, 25th and 26th.
One can only imagine where the Seahawks would've ranked during most of those years were Russell Wilson not among the most mobile quarterbacks in the NFL.
Although Cable has a history with the Raiders, he and Gruden never crossed paths. Oakland traded the coach to the Tampa Bay Buccaneers in 2002.
Cable served as the Raiders' offensive line coach in 2007 and 2008 before becoming the interim head coach in 2008 and being elevated to the full-time gig for 2009 and 2010.
While Cable had little success as a head coach and has struggled in his duties as an offensive line coach recently, his familiarity with Oakland could be an asset to Gruden in his return to coaching.