In just a few short days, the Las Vegas Raiders will kick off the Klint Kubiak era with a preseason bout against the Arizona Cardinals. With that contest just on the horizon, the Raiders released their first unofficial depth chart of the preseason. Observations from Las Vegas Raiders' first unofficial depth chartQuarterbackKirk Cousins | Fernando Mendoza | Aidan O'Connell | Jacob ClarkFans remember when this used to say "Gardner Minshew OR Aidan O'Connell." Now, Las Vegas will probably be in 12 personnel a lot with just two wideouts, so only Nailor and Tucker will get "starts." So, they'll be auditioning for spots on other 53-man rosters and for a chance to stick in Las Vegas.