Jeff Garcia is adjusting to the role of backup behind quarterback JaMarcus Russell in Oakland. "It's not an easy role to accept because of the competitive nature that is within me," Garcia said Saturday. "I struggled with it when I was in Philadelphia. I had a hard time just sitting on the sideline watching." Russell is the team's unquestioned starter, but is feeling pressure to progress significantly this season. Garcia is being asked to mentor the young quarterback. "It's about understanding your role and I understand what I have come into with this team," said Garcia. "I understand that JaMarcus is the starting quarterback. I do believe that I am a starting quarterback, as far as caliber is concerned. Hopefully by the example that I set ... JaMarcus can see and understand that this is why I've been able to play this game so long and why I've been able to have the success that I've had. "Hopefully that competitive drive is just what allows JaMarcus to increase his own competitive spirit. The greatest understanding that needs to come out of all this is that this is a small window in our lives. It's a small window of opportunity to and to make the most of this opportunity."