When the Raiders open the season, only four offensive starters (QB Derek Carr, LT Kolton Miller, OG Gabe Jackson and C Rodney Hudson) will likely be the same from the group that was on the field for Jon Gruden’s first game back as head coach in Week 1 of the 2018 season. The dramatic reshaping of the roster continued this offseason with a slew of free agency acquisitions, including a needed upgrade at linebacker via the signings of Nick Kwiatkoski and Cory Littleton, the additions of Damarious Randall at safety and Carl Nassib on the edge, and a trio of ex-Cowboys (Jason Witten, Jeff Heath and Maliek Collins). The veterans should complement what the Raiders hope will be a productive draft class, led by a pair of first-rounders (receiver Henry Ruggs and cornerback Damon Arnette) who are expected to push for starting spots immediately. The most intriguing acquisition was quarterback Marcus Mariota. I could see him doing the same thing to Carr that Ryan Tannehill did to Mariota last season and taking the reins, should Gruden decide to make a change under center.